It is commonplace, in discussions of the Christian concept of atonement, to draw attention to the fact that (unlike the Trinity and incarnation) Christian orthodoxy has never sought to define the doctrine of atonement beyond a general affirmation of its truth. The Symbol of Nicaea states that the Son became incarnate ‘for us humans and for our salvation’ (Tanner (Reference Tanner1990), I 5), but neither the bishops at Nicaea nor their successors at later councils tried to explain how Christ's life, death, or resurrection brought about salvation, or indeed what salvation itself consists of.
It is also commonplace to describe later Christian reflection on the atonement in terms of various competing ‘models’, offering different explanations of how Christ saves sinners.Footnote 1 It has become standard to categorize these models into two main types: ‘objective’ models (versions of which are attributed to Anselm of Canterbury and John Calvin) and ‘subjective’ ones (attributed to Peter Abelard).Footnote 2
‘Objective’ models, in brief, are those where Christ is regarded as having performed some action that affects God's attitude towards sinners: either he makes satisfaction on their behalf (as in Anselm and Aquinas) or suffers the penalty for their sins in their place (as in Calvin and later defenders of ‘penal substitution’, particularly in the evangelical tradition).Footnote 3 ‘Subjective’ models, by contrast, view Christ's action as directed towards sinners themselves, with salvation consisting in (or depending upon) a change in lifestyle inspired by the love demonstrated in Christ's life and death.Footnote 4
There are well-known advantages and disadvantages to both groups of models, leading many theologians either to try to hold them together at the same time or to find alternative models that combine the best features of both.Footnote 5 One such alternative approach is the ‘participatory’ model of atonement (PMA).
The participatory model
The PMA has a slightly unusual history. Arguably a central element of Paul's theology, it has been well known to New Testament scholars for decades, but has been conspicuously absent from theological surveys of atonement models. Only now are philosophical theologians starting to take it seriously. In particular, Tim Bayne and Greg Restall (Reference Bayne and Restall2009) have defended this model on the grounds that it avoids some of the pitfalls associated with its more commonly discussed rivals.
The central biblical text on which the model is based is Romans 6–7, where Paul writes about how, through Christ, believers may escape their old life and begin a new one. He states:
Do you not know that all of us who have been baptized into Christ Jesus were baptized into his death? Therefore we have been buried with him by baptism into death, so that, just as Christ was raised from the dead by the glory of the Father, so we too might walk in newness of life. For if we have been united with him in a death like his, we will certainly be united with him in a resurrection like his. We know that our old self was crucified with him so that the old body of sin might be destroyed, and we might no longer be enslaved to sin. For whoever has died is freed from sin. But if we have died with Christ, we believe that we will also live with him. (Romans 6:3–8; all biblical quotations are from the NRSV)
From the perspective of a philosophical theologian, this passage looks very like an attempt to explain how Christ's death and resurrection save believers. We may summarize a model inspired by this passage like this:Footnote 6
(1) Sin is an ontological reality that binds human beings, corrupting their nature, destroying their relationships, and leading them to disobey God. This results in each person suffering from a sinful identity: they are not simply people afflicted by sin, they are sinners.Footnote 7
(2) The only way for sinners to escape sin and cease being sinners is to die and lose this old, sinful identity.
(3) Through participation in Christ via faith and the sacraments, human beings can share his death and ‘die’ to their old identities.
(4) They can also share his resurrection and gain new identities.
(5) As a result, human beings can be remade with new identities, free from the power of sin and the guilt that it brings.
At the heart of the PMA is the notion of participation, which is twofold. First, sinners are able to identify with Christ; in Pauline terms, they are ‘in Christ’. This means not simply sympathizing with him or imitating him, but in some sense becoming identical with him. Second, as a result of this, sinners acquire Christ's properties, or at least some of them. The idea rests on Leibniz's Law: if x is (numerically) identical with y, then y must have all the properties that x does, just as (say) Clark Kent has all the properties that Superman does, because they are one and the same. Christ died: the sinner who participates in Christ therefore dies too (in some sense). Christ rose again: the sinner will therefore rise too. Because he has died and risen again, Christ is free from the power of sin: the sinner is therefore free from it, too. This is what salvation means. We should therefore be careful to distinguish the PMA from theological discourse that speaks of participation in Christ but views it as distinct from the mechanism of atonement and salvation. Many theologians might be willing to use this language, but only in conjunction with other explanations of atonement. The PMA is distinct in that it makes this language primary.
The PMA combines elements of both the ‘objective’ and ‘subjective’ models of traditional analysis, but is distinct from both. Like ‘objective’ models, something really happens on the cross and in the garden tomb. Christ's death actually accomplishes something that would have been theoretically impossible otherwise. But what it accomplishes is not the paying of a debt or the satisfaction of a moral law, but the transformation of human beings. And like ‘subjective’ models, the focus is on sin as a personal reality and on the need for moral and spiritual change in sinners. But sinners are changed not by imitating Christ's example, but by sharing in his identity through participation.
Bayne and Restall note a number of positive elements to the PMA. First, it presupposes a largely non-deontic view of sin. Bayne and Restall criticize ‘objective’ models on the grounds that they characterize sin ‘as purely a failure on our part to fulfil our moral obligations’ (Bayne & Restall (Reference Bayne and Restall2009), 151). They argue that this is an inadequate notion of sin, and that while sin certainly does include deontic elements (a sinner is, among other things, someone who has failed in her moral duties), this is not its most important character (ibid., 152–153). Rather, sin is more fundamentally relational and ontological: the sinner is someone whose relationship with God is broken, and who is in some way metaphysically corrupted.
Where traditional ‘objective’ models see salvation as consisting in, or depending upon, a legal or quasi-legal resolution of transgressions committed by the sinner, the PMA sees it as involving the transformation of the sinner. The sinner is, above all, someone who suffers from being in a sinful condition, analogous to an incurable disease (or, as Bayne and Restall call it, ‘a sickness and a pollutant’ (ibid., 154). Precisely what this involves needs to be set out in more detail, but for now we may appeal to the traditional Christian doctrine of concupiscence, the notion that – whether as a result of biological inheritance or our social context, or both – we are subject to overwhelming desires that inevitably result in our committing sinful acts. Like an incurable disease, the sinful nature can be escaped only by either dying or undergoing a miraculous transformation.Footnote 8 This is why atonement has to involve death: death is not, on this model, a punishment or a payment; it is the only way of escaping sin.
This leads to the second positive element of the PMA, on Bayne and Restall's analysis. It presents the fundamental problem of sin, and the nature of salvation, as focused on identity.Footnote 9 Sinners escape sin by literally (on some level) becoming new people. Bayne and Restall write:
Paul's conception of sin is not, primarily, deontic. He does not see Christ's death and resurrection as the salve for a troubled conscience . . . The participatory strand in Paul's theology takes sin to be a problem of our identity – the atonement is not a matter of balancing the moral ledger but involves the inauguration of a new form of humanity. (ibid., 160)
By changing the identity of sinners, they escape sin conceived in ontological terms as a kind of corruption of human nature, because they are refashioned without it. Not only this, but the deontic element of sin is addressed too. Because sinners have changed their identity, they are no longer subject to the power of concupiscence that was bound up with their old identity. Moreover, they are no longer the same people who committed their past transgressions, and are therefore free from the guilt of those past transgressions.
Weaknesses of the model
But these strengths of the PMA are bought at the cost of some serious potential weaknesses. One, which Bayne and Restall do not address, is the possible incoherence of its understanding of the nature of sin. Sin, in this model, is portrayed as a corruption of human nature that must be purged through remaking the self. Does this mean sin is a physical corruption, literally a kind of illness of the body? If so, and if this corruption is removed by participation in Christ, then in theory one could distinguish between those who have been saved and those who have not by using a microscope – an absurd consequence. Perhaps instead it is a metaphysical corruption, of the soul rather than of the body. But in that case, this model of the atonement will require a belief in a soul, as a substance distinct from the body – something about which many theologians today, like most philosophers, are dubious.
Alternatively, perhaps sin is a purely psychological corruption, akin to non-chemical addiction or compulsive behaviour. But then the talk of ‘sickness’ and ‘pollutant’ must be metaphorical to some degree. And it is not clear why a change in identity of the kind envisaged by this model should eliminate (or reorder) these psychological traits and not other ones, such as those that constitute our personalities.
Moreover, if we conceive of sin in terms of concupiscence – an overwhelming tendency to commit sins – and we think of participation in Christ as remaking individuals’ natures such that they escape this power of sin, then those who have faith in Christ and participate in the sacraments should be free from the power of concupiscence and able to refrain from sinning. But this is inconsistent with experience.
These issues with the conception of sin relate closely to an even more serious problem with the PMA, which is the concept of ‘participation’ itself. What exactly does it mean to ‘participate in Christ’? How can the believer be considered ‘identical’ with Christ in any serious sense? One possible answer is this: to say that the Christian ‘dies with Christ’ (as Paul puts it) is to say that she identifies with Christ to such a degree that she replicates Christ's death in her own life, in a spiritual way. On this interpretation, ‘identity with Christ’ is more of an experiential reality than an ontological one: the Christian identifies with Christ rather as the sports fan identifies with a team. Just as the fan can say, ‘We lost today’, even though he did nothing himself, so too the Christian can say, ‘I died to sin’. By living as Jesus did, the Christian escapes the corrupting influence of sin.Footnote 10 ‘Identity’, in this version of the model, means something akin to national or cultural self-identity.
Such an interpretation may seem attractive, but it risks stripping the PMA of everything that distinguishes it from other models of the atonement. Bayne and Restall imagine the following objection:
The Christian doesn't literally die on the cross with Christ, and she isn't literally reborn with Christ in his resurrection. What sense can we really make of participating in the death and life of Christ? There is really no such thing as a participatory model of the atonement; instead, all we have are a motley and confusing assortment of metaphors. (ibid., 161)Footnote 11
This version of the PMA is effectively a version of the ‘subjective’, Abelardian model of the atonement, framed in Pauline language. Even so, it does still have some distinctive elements to it. The traditional exemplarist model focuses on Christ as a moral exemplar, primarily of love, and views atonement as consisting of imitating that loving example. What we might call the ‘subjective participatory model’ focuses more on identity, and on the sinner's need consciously to change her self-identification away from self and towards Christ.Footnote 12
But can there be an ‘objective participatory model’?Footnote 13 Such a model would take ‘identity’ not in the social sense but in an ontological sense. It would hold that the Christian is ‘identical’ with Christ in the sense of numerical identity, at least on some level.Footnote 14 On such a model, the Christian does die on the cross with Christ. Unlike the subjective version of the PMA, such a model is not reducible to one of the existing models of atonement. But it takes us back to the major problem of how the Christian can be considered identical with Christ, and what ‘participation’ consists in. If x is identical with y, this means that ‘x’ and ‘y’ are simply different names for the same thing, like ‘Clark Kent’ and ‘Superman’. If x is identical with y, anything that is true of x is true of y. But clearly the Christian is not identical with Christ in this sense, and does not share all of his properties. The Christian does not become a Galilean carpenter.Footnote 15 But then what kind of identity is involved, and how does the Christian acquire some of Christ's properties but not others?Footnote 16
Bayne and Restall offer two suggestions in response to this problem. One is to point out that we do commonly think of moral identity as being sometimes distinct from personal identity, and so it may be plausible to think of the atonement as involving a change in one without a change in the other. The other is to note that other central Christian doctrines, such as the incarnation and Trinity, if taken literally, also involve problematic identity statements (ibid., 162–163).
In themselves, these are no more than starting points, since they do not explain how we should conceive of the notion of identity that is employed in the PMA. But we can develop a clearer approach, and a more detailed model, using insights from the American Puritan theologian Jonathan Edwards (1703–1758).Footnote 17
Edwards on identity
Jonathan Edwards did not hold the model of the atonement described above.Footnote 18 But his treatment of other doctrines, notably original sin and incarnation, closely parallels the PMA. In his writings on these topics, we find Edwards deeply concerned with questions of identity: how one person can be identical with another in some sense while distinct in another, and how properties of one can be ascribed to another.
In what follows, I briefly examine Edwards's treatment of these doctrines, focusing on elements of particular relevance to our purpose. After this, I suggest ways in which these elements could be used to construct a version of the PMA which Edwards himself might not have endorsed but which builds on his thought.
I begin with an argument Edwards develops regarding the doctrine of original sin, in book IV, ch. 3 of one of his last work, The Great Christian Doctrine of Original Sin Defended. He argues that Adam's descendants are, in some sense, identical with Adam, and consequently share his guilt:
God, in each step of his proceeding with Adam, in relation to the covenant or constitution established with him, looked on his posterity as being one with him . . . From which it will follow, that both guilt, or exposedness to punishment, and also depravity of heart, came upon Adam's posterity just as they came upon him, as much as if he and they had all coexisted, like a tree with many branches . . . I think, this will naturally follow on the supposition of there being a constituted oneness or identity of Adam and his posterity in this affair. (WJE III 389–390; all italics in Edwards's quotations are original)
Edwards's framing of original sin as involving ‘identity’ between Adam and his descendants diverges from typical Reformed approaches to this topic at the time. It was more usual to argue that God justly imputes Adam's sin to his descendants because Adam acts as his descendants’ representative.Footnote 19 Here, then, Edwards unfolds a version of the original sin doctrine both original in its details and strikingly similar to the PMA. Just as, in the latter, sinners are somehow identical with Christ and share his properties, here they are somehow identical with Adam and share his properties, namely his guilt.Footnote 20
The major objection to this doctrine, which Edwards ascribes to his antagonist John Taylor, is correspondingly similar to the major objection to the PMA: ‘that Adam and his posterity are not one, but entirely distinct agents’ (WJE III 394). Edwards's reply to this objection is an elegant piece of theological metaphysics.Footnote 21 He argues that ‘created identity or oneness with past existence, in general, depends on the sovereign constitution and law of the supreme Author and Disposer of the universe’ (WJE III 397). That is, personal identity over time always depends upon God's decree. Edwards argues that the existence of any given object (e.g. the moon) at any given moment (e.g. t2) must be caused either by itself at an earlier time (t1) or directly by God. But the former is impossible, because that would violate the principle that an object has no causative power in times or places where it does not exist (WJE III 400). Therefore, the moon at t1 and the moon at t2 are both caused directly by God and have no causal relation to each other, any more than objects far apart in time and space do (WJE III 401). God's conservation of the universe ‘is altogether equivalent to an immediate production out of nothing, at each moment’ (WJE III 402).
We may call Edwards's view an extreme version of occasionalism:Footnote 22 God does not merely directly cause every event in the world, but recreates the entire world (with minimal changes) from moment to moment. So where we think a single individual persists over time, in fact there is a series of quite distinct individuals, each lasting for only a moment.Footnote 23 This is a clear rejection of endurantism (the view that the whole of an object is present at any given time and endures from one moment to the next); Edwards unequivocally holds four-dimensionalism.Footnote 24 It may also seem like a rejection of perdurantism (the variety of four-dimensionalism that holds that objects are genuinely temporally extended, so that its temporal parts compose a genuine unity). However, Edwards thinks that God chooses to regard the distinct temporal stages as a single individual persisting through time. This means that he can be seen as endorsing a version of perdurantism.Footnote 25 I-at-t1 am a temporal part of a whole that includes me-at-t2 and a host of others – but these different temporal parts form a single whole only because God regards them as doing so.Footnote 26 Edwards's main point is that If God can do this, then he can also regard each descendant of Adam as identical with Adam, just as he regards each successive me as identical with each other (WJE III 404). If it is just for God to hold me-at-t2 guilty for something I-at-t1 did, it can be just for God to hold me guilty for something Adam did.Footnote 27
God's decision to regard me-at-t2 as identical with me-at-t1 is not a whim.Footnote 28 Identity over time is connected to psychological similarity, and Edwards cautiously endorses Locke's consciousness-based theory of personal identity. On this theory, I am the same person who had cereal for breakfast this morning because my ‘consciousness’ extends back to that point, as shown in the fact that I remember it (WJE III 398).Footnote 29 Clearly, though, there is no psychological continuity between Adam and his descendants. So how can God regard them as identical? Edwards points out that ‘[t]here are various kinds of identity and oneness, found among created things, by which they become one in different manners, respects, and degrees, and to various purposes’ (WJE III 404–405). These different kinds of identity are founded on God's will, which itself is ‘regulated by divine wisdom’ (WJE III 406), and the divine wisdom may have different reasons for its decisions. Edwards notes two kinds of reasons: first, God may regard two things as identical if doing so has ‘analogy and harmony with other laws’ (which Edwards does not really explain);Footnote 30 and second, he may do so because it results in beneficial consequences (WJE III 406). He goes on to argue that both of these conditions apply to the identification of Adam with his descendants. Moreover, he insists elsewhere in the book, Adam's status as the first human makes him peculiarly appropriate to be regarded as identical with all of his descendants (WJE III 259–260).Footnote 31
We may, then, summarize Edwards's theory of identity, as expressed in On Original Sin, like this:
(1) No object persists through time; there are only discrete objects existing momentarily at each instant. Call this the Continuous Creation Thesis.
(2) Identity through time depends entirely upon the will of God, who is able to regard two or more discrete objects at different times as identical, thereby making them identical. Call this the Divine Voluntarism Thesis.Footnote 32
(3) God does this when he has a good reason to do so, either because (a) it is consistent with his other decisions, or because (b) it has good consequences. Call this the Divine Wisdom Thesis.
(4) In normal cases of personal identity over time, God regards the different temporal entities as identical because of psychological similarity between them, which itself holds only because he has chosen to create these different temporal entities with that psychological similarity. (Edwards does not say whether this is an example of 3a or 3b above, or an entirely different basis for identity.) Call this the Psychological Similarity Thesis.
We can see how some of these principles can be applied to other doctrines by considering Edwards's approach to one of the thorniest problems in Christian philosophical theology: that of incarnation.
Incarnation and identity
Traditionally, Christians believe that Jesus of Nazareth, the historical human being who lived in Galilee, was identical with God the Son, the second Person of the Trinity. But it seems to follow that the Son has properties that theologians are traditionally reluctant to ascribe to God. He is, for example, temporally and spatially located, he undergoes change, and he suffers and dies. Theologians have proposed various solutions to this problem, but the most popular throughout Christian history is what is now known as ‘compositionalism’. On this view, the Son became incarnate not by being transformed into a human being like a caterpillar being transformed into a butterfly, but by acquiring or ‘assuming’ a human body and soul. A relation of some kind exists between the Son on the one hand (the divine nature) and the human body and soul on the other (the human nature), and it is in virtue of this relation that the Son can be called genuinely human.Footnote 33 The human nature is located in time and space, suffers change, and so on, but the divine nature does not. Most of the historical Christological disputes have been between people who accepted this general story but disagreed about what relation holds between the two natures.Footnote 34 The model continues to be defended today.Footnote 35
A problem with this approach to incarnation is that if Christ's human nature is a particular human individual – the body, animated by a rational human soul, walking around Galilee – which is ‘assumed’ by the divine Son, then it is distinct from the divine Son. This, indeed, is demanded by orthodoxy: the Definition of Chalcedon specifies that there is ‘no confusion’ between Christ's two natures (Tanner (Reference Tanner1990), I 86).Footnote 36 But given this, it is hard to see how the Son himself is human at all. He seems, rather, to be associated with a human being. This sounds like Nestorianism, the heretical view that there are two persons in Christ, one human and one divine.
So a traditional metaphysics of incarnation has to find a way between two unacceptable extremes. Jesus of Nazareth has to be identical with the Son in the sense that they are one and the same person. But he cannot be identical with the Son in the sense that his human nature is the same thing as his divine nature.
One again, the problem parallels the one we have seen with the PMA. In each case, we have the claim that a human being can be considered identical (in some sense) with a divine figure, while at the same time being non-identical (in some other sense) with that figure. In the case of incarnation, Jesus is ambiguously identical with the Son. In the case of atonement, the sinner is ambiguously identical with Christ.
A common image used to portray the relation between Christ's two natures is that of the body and soul. Just as normal human beings (assuming some kind of substance dualismFootnote 37) are composed of two concrete particulars which nevertheless compose a single genuine unity, so too is Christ.Footnote 38 For some theologians, this means that just as the soul uses the body as a kind of instrument, so too God the Son uses his human nature as an instrument to act in the physical world.Footnote 39
There is biblical warrant for applying the same idea to the relation between Christ and his followers. Paul calls the church the ‘body of Christ’Footnote 40 and seems to mean by this – among other things – that each individual believer acts like an organ of Christ: Christ uses them instrumentally to achieve his aims. But there is nothing in these passages to suggest that being the ‘body of Christ’ has anything to do with the process of dying to sin found elsewhere in Paul. Moreover, it is questionable whether such an analogy is adequate to ground the transference of properties, let alone identity.Footnote 41
Edwards on incarnation
As with his handling of original sin, Jonathan Edwards recognizes that the doctrine of incarnation raises a problem of identity. The incarnation involves identity not over time but between a temporal object and a non-temporal one. But it is easy to extend the Divine Voluntarism Thesis to cover non-temporal objects as well as temporal ones. If God is capable of regarding objects at different times as identical, why should he not be capable of regarding temporal objects as identical to non-temporal ones too?
Given this, it may seem that Edwards has an easy answer to the problem of how Jesus can be identical with the Son. The Divine Wisdom Thesis allows him to hold that God can regard Jesus as identical with the Son if doing so has beneficial consequences. Clearly, it does have beneficial consequences, as it allows for both the incarnation and the atonement. Edwards could therefore construct an argument for the union of Christ's natures much like his argument for the union of Adam with his descendants.
However, Edwards does not take this easy route. Perhaps, when he wrote on the incarnation, he had not yet developed the Divine Wisdom Thesis (On Original Sin, where it appears, was written right at the end of his life). Even if he had developed it, though, he might have found it unsatisfying as an explanation of how the incarnation works.
Edwards evidently wanted to find such an explanation. Although he wrote little on the incarnation in his published works, the topic appears a number of times in his Miscellanies, a long series of short notes written throughout his life for his personal use.Footnote 42 In them we find Edwards experimenting with ideas that are often not fully developed. One of the most important is Miscellanies 487, entitled ‘Incarnation of the Son of God and union of the two natures of Christ’, written in late 1730 or early 1731 (WJE XIII 87–88; Withrow (Reference Withrow2011), 126–135). In this short text, Edwards tries to answer the question we have just been looking at: how can Jesus be considered identical with the divine Son? He writes:
’Tis not [just] any communion of understanding and will that makes the same person, but the communion of understanding is such that there is the same consciousness. Thus [1] the man Christ Jesus was conscious of the glory and blessedness the Logos had in the knowledge and enjoyment of the Father before the world was, as remembering of it (John 17:5). (2) He has the same spirit or disposition towards the Father; not as believers have a filial spirit, or spirit of children, but he has the Spirit of the only begotten of the Father. He is disposed towards the Father as being his own Father in the manner that he is the Father of the Logos, and is conscious of a respect in the Father to him as the only begotten Son . . . (WJE XIII 529)
Although this text was written over twenty-five years before On Original Sin, the reasoning parallels parts of the argument in the later book. Edwards appeals to the Psychological Similarity Thesis, but here applies it to Christ. Jesus is identical with the Logos because of the qualitative similarity – the ‘same consciousness’ – that he bears towards the Logos. The fact that Jesus and the Logos are distinct entities is irrelevant, just as the fact that I-at-t1 and I-at-t2 are distinct entities does not prevent God from decreeing (on the basis of our psychological continuity) that we are identical.
But there is more to Edwards's argument here. The properties in virtue of which Jesus resembles (and is thus identical with) the Logos are relational properties. Edwards lists them in the passage quoted above:
(1) Consciousness of the eternal knowledge and enjoyment of the Father
(2) Knowing the Father as his own Father
(3) Knowing the Father's attitude towards him as the Son
In other words, what makes somebody identical to the Son is bearing a certain relation (or set of relations) to the Father. This idea goes back at least to the Cappadocian Fathers, who argued that the Persons of the Trinity are distinguished solely by their mutual relations.Footnote 43 Shortly before he wrote Miscellanies 487 on the incarnation, Edwards had begun work on his Discourse on the Trinity, in which he developed the argument that the Son is the Father's idea of himself.Footnote 44 Because this reflexive idea is perfect, it constitutes a divine person in its own right. As Edwards puts it:
God's idea of himself is absolutely perfect, and therefore is an express and perfect image of him, exactly like him in every respect. There is nothing in the pattern but what is in the representation – substance, life, power, nor anything else – and that in a most absolute perfection of similitude; otherwise it is not a perfect idea. But that which is the express perfect image of God, and in every respect like him, is God to all intents and purposes, because there is nothing wanting; there is nothing in the Deity that renders it the Deity but what has something exactly answering of it in this image, which will therefore also render that the Deity. (WJE XXI 114)Footnote 45
So for Edwards, what makes the Son the Son of the Father is that he is the Father's idea of himself. What makes him a divine Person is that, as idea, he represents the Father perfectly and therefore resembles him perfectly. In Miscellanies 487, he makes no reference to the notion of the Son as the Father's idea of himself, but this fundamental relation of ‘absolute perfection of similitude’ is present. Just as this relation constitutes the identity of the Son within the Trinity, so too it identifies Jesus as the incarnate Son.
We may, then, pick out the following claims from Edwards's arguments in Discourse on the Trinity and Miscellanies 487:
(1) The Son is the perfect representation of the Father, meaning that he resembles him perfectly, and bears certain relations towards him as a result. Call this the Divine Resemblance Thesis.
(2) Only the Son bears this resemblance, and these relations,Footnote 46 to the Father. Call this the Unique Sonship Thesis.
Despite the Unique Sonship Thesis, Edwards accepts that there is a thing that, in some sense, is not identical with the Son, yet which bears the relevant relations to the Father: Jesus, or Christ's human nature. But he seems to hold a hidden additional thesis:
(3) Relations are (or can be) identity-constituting. Call this the Identity Constituting Thesis.
This means that, if Jesus perfectly resembles the Father and bears towards him the same relations that the Son does, he simply is the Son. This is a Christological parallel to the Psychological Continuity Thesis, but it has a Trinitarian basis.
There is another line of thought in Miscellanies 487 (and much of Edwards's other writing on the incarnation): Christ's human nature is united to the divine nature through the indwelling of the Holy Spirit.Footnote 47 Edwards points out that believers are united to God through the Holy Spirit, who dwells within them. Why, then, should Jesus not be united to God in a similar way?
As the union of believers with Christ be by the indwelling of the Spirit of Christ in them, so it may be worthy to be considered, whether or no the union of the divine with the human nature of Christ ben't by the Spirit of the Logos dwelling in him after a peculiar manner and without measure. Perhaps there is no other way of God's indwelling in a creature but by his Spirit. (WJE XIII 528)
Here we see the fundamental idea that believers’ participation in the divine via Christ is not a unique phenomenon but of the same kind as Jesus’ own participation in the divine.Footnote 48 In other words, sanctification is the same kind of thing as incarnation, though it is not identical. Edwards immediately goes on:
The Spirit of Christ's dwelling in men causes an union, so that in many respects [they may be] looked upon as one: perhaps the Spirit of the Logos may dwell in a creature [i.e. Christ's human nature] after such a manner, that that creature may become one person [with the Logos], and may be looked upon as such and accepted as such. (WJE XIII 528)
Here again the Trinitarian basis of Edwards's understanding of incarnation is clear. In the Discourse on the Trinity, Edwards repeats and develops the Augustinian idea that the Holy Spirit is identical with the bond of love between the Father and the Son (WJE XXI 121–122; Hastings (Reference Hastings2005), 283). If, then, Jesus’ identity with the Son is founded upon his bearing the same relation to the Father that the Son does, the Holy Spirit must be involved.
Edwards effectively identifies two kinds of relations that hold between the Father and the Son. One is ontological, involving the Holy Spirit. The other is psychological, involving knowledge of the Father that only the Son has. Jesus bears all of these relations to the Father, and is therefore identical with the Son. The two kinds of relations are closely related, though, because it is through the indwelling of the Holy Spirit that Jesus has the psychological state of the Son:
The man Jesus becomes one person by a communion of knowledge and will; but as in believers all divine knowledge is by the Spirit . . . so, I suppose, ’tis by the Spirit that divine knowledge and consciousness is given to the man Jesus. And so, as ’tis by the Spirit of God that a divine temper is given to men and angels, so I suppose ’tis by the Spirit of the Logos that the man Jesus hath the spirit and temper of the only begotten Son of God. (WJE XIII 530)
We may, then, supplement our previous summary of Edwards's reasoning with these additional points:
(1) Jesus’ union with the Son is similar in kind to believers’ union with Jesus. Call this the Consistent Union Thesis.
(2) Union of creatures to God is always achieved through the indwelling of the Holy Spirit. Call this the Unifying Spirit Thesis.
An Edwardsean model of the PMA
We are now in a position to construct a participatory model of the atonement using these materials from Jonathan Edwards. Leaving exposition of Edwards entirely aside now, our purpose is to see whether someone who accepts (some of) the Edwardsean claims we have just examined could use them to defend a version of the PMA (not necessarily one that Edwards would have accepted).
Let us begin by recapitulating the claims we have seen in Edwards:
(1) Continuous Creation Thesis – a controversial metaphysical commitment that not all theists will be willing to accept.
(2) Divine Voluntarism Thesis – again, a controversial claim, whether taken in its strong or weak versions.
(3) Divine Wisdom Thesis – this seems much more plausible.
(4) Psychological Continuity Thesis – a widely, but not universally, held thesis.
(5) Divine Resemblance Thesis – a plausible Trinitarian claim.
(6) Unique Sonship Thesis – a claim that most traditional Trinitarians would accept.
(7) Identity Constituting Thesis – a claim that might be generally acceptable in a solely Trinitarian context, but which is much more tendentious as a general metaphysical principle.
(8) Consistent Union Thesis – a plausible and unproblematic claim.
(9) Unifying Spirit Thesis – a plausible claim, at least for most Christians.
Edwards appeals to (1)–(4) of these in his defence of the doctrine of original sin, and he could (but doesn't) appeal simply to (2) and (3) to defend the incarnation. The same applies to the PMA. A theologian who accepts (2) and (3) could argue that, if God were to regard repentant sinners as identical with Christ, the benefits would be very great; therefore divine wisdom leads him to do so. However, the Divine Voluntarism Thesis is problematic enough for this to be an unappealing solution.
It would be better to use the Trinitarian and incarnation-based claims. Just as Edwards uses (5), (6), and (7) to show that Jesus is the Son, so too a theologian who accepts these claims could use them to argue that Christians are identical with Christ. An obvious difference between the two cases is that, on Edwards's account (and any Christian could plausibly agree), Jesus was psychologically and relationally exactly similar to the Son;Footnote 49 but Christians clearly are not. But the defender of the PMA might appeal to (9): just as (according to Edwards) the Holy Spirit works within Jesus to render him exactly similar to, and therefore identical with, the Son, so too we might say that the Holy Spirit works within Christians to make them exactly similar to the Son as well.
But if the Holy Spirit is really at work within Christians in this way, it is a long process, one that takes place throughout the Christian life and beyond. But the effects of Christ's atonement are supposed to be available right from the start of the Christian life. In the passage from Romans with which we began, for example, Paul locates the Christian's ‘dying with Christ’ in the past. But if this dying with Christ is based upon identity with Christ, then the Christian must be identified with Christ at an early stage of her Christian faith, not as something to look forward as a result of the activity of the Holy Spirit.
One possible solution is to see identity as a matter of degree. Just as a person may become more and more like Christ over time, so she becomes more and more identical with him. As soon as the Holy Spirit begins to work within her, giving her even a little of what Edwards calls ‘the spirit and the temper’ of the Son, she is identical with the Son to some degree. This is a very problematic solution. On the classical view of identity, any x and y simply are or are not identical; identity does not come in degrees. While the notion that a person may be partially (qualitatively) similar to the Son is readily comprehensible, the notion that a person may be partially (numerically) identical to him is not.
This solution could be saved if we introduce the notion of different kinds of identity. Because the Christian bears the appropriate relations to the Father (and, perhaps, to the Spirit), the Christian is genuinely identical with the Son, but (crucially) this is a different sort of identity from the mundane variety. As Bayne and Restall point out, ‘moral identity’ is arguably distinct from ‘numerical identity’, and is ‘a matter of one's commitments, values and relationships’ (Bayne & Restall (Reference Bayne and Restall2009), 163). We could develop this idea of different kinds of identity further. We might distinguish between ordinary identity (identityo) and divine identity (identityd). Identityo may itself be subdivided, depending on what our theory of identity is; for our purposes, any theory will do. What matters is that identityd is something different. Two things may be identicald if (a) one of them is a divine Person and (b) they are both characterized by a certain set of exactly similar relations, such as those we have already considered.Footnote 50
The viability of this model rests, to a considerable degree, upon the plausibility of claim (7) above, the Identity Constituting Thesis. But this may be reasonably plausible, at least to a traditional Trinitarian Christian, if we restrict that thesis to relations involving divine Persons. It would mean that some of Christ's properties, such as his having died and his being resurrected, can be truly said to apply to the Christian, because the Christian is truly identicald with Christ even without being identicalo with him. This version of the PMA thus avoids the problem of collapsing into the Abelardian subjective model. However, it needs to account for the fact that only some of Christ's properties apply to the Christian: the Christian does not acquire the property of having been born in a stable, for example; so why should she acquire the property of having died? It must also explain why the properties that are transferred to the Christian apply to her in a distinctive way. The Christian has not died in the same sense as Christ has died. But if the Christian is genuinely identical with Christ, she should have.
We could fill these gaps in the model by holding that when the Christian becomes genuinely identicald with Christ, this does not mean that (some of) Christ's properties are automatically transferred to the Christian by Leibniz's Law. Rather, it could mean that God chooses to transfer some of them – or, which may come down to the same thing, that he chooses to regard the Christian as bearing those properties. It now makes sense that these properties apply to the Christian in a different way from how they apply to Christ, and it also makes sense that only some properties are transferred or imputed (and only from Christ to the Christian, not vice versa). Note that, although this suggestion is inspired by Edwards's Divine Voluntarism Thesis, it does not require holding that thesis (in either its strong or weak versions). We are not suggesting that God directly causes the Christian to be identicald to Christ; that identityd is already based on the Christian's bearing certain relations to the Father and to the Son.Footnote 51 But the consequences of being identicald to Christ may be determinable by God, guided by his wisdom.
The plausibility of the model as here sketched stands or falls with the plausibility of the distinction between identityo and identityd. The very notion of different kinds of identity is problematic in itself. And the claim that identityd comes in degrees is more problematic still, as we have seen. Moreover, if identityd does not result in the automatic transference of properties by Leibniz's Law, then how is it a kind of identity at all? The defender of this model might appeal to the fact that identityd has these counterintuitive features because it concerns the divine – and identityo has, on this account, been insulated from them, which means that our normal, classical intuitions about identity still normally apply. But this appeal to divine mystery still feels unsatisfying.
An alternative solution is to keep the same structure of the model but to remove the appeal to numerical identity at all. Instead of inventing ‘identityd’, a mysterious relation which has little in common with identity as we normally understand it, we can appeal instead just to the similarity that holds between the Christian and the Son as a result of the action of the Holy Spirit. We might say that, ordinarily, such similarity does not result in numerical identity. In the case of Jesus, there was perfect similarity, such that Jesus really was identical to the Son as a result of the Divine Resemblance Thesis, the Unique Sonship Thesis, and the Identity Constituting Thesis. The action of the Holy Spirit on Christians results in their becoming similar to the Son, and perhaps even bearing similar relations to the Father as the Son does, but not to such a degree that they are literally identical to the Son, as Jesus is.
This revised version of the model presents the participation of Christians in Christ solely as a matter of (partial but increasing) resemblance as a consequence of the action of the Holy Spirit, rather than as a mysterious kind of numerical identity. On this view, how do Christians acquire the benefits of Christ's death and resurrection? We could appeal, as we did before, to direct divine action. If the Christian is becoming more like Christ as a result of the action of the Holy Spirit, this must consist of the Holy Spirit causing the Christian to bear more of the properties that Christ does. Among these properties could be some of the effects of having undergone death and resurrection. As we saw earlier, Paul talks in Romans of being ‘buried with him by baptism into death’. By becoming more like Christ through the activity of the Holy Spirit – initiated by baptism – Christians may share in Christ's death in the sense that they acquire the properties that Christ acquired through dying: escaping the power or contagion of sin (however precisely that is understood), becoming remade in a ‘spiritual body’, and so on.Footnote 52
On this model, atonement is a lengthy process. There may be a particular moment – perhaps, as Paul suggests, the moment of baptism – when the believer ‘dies’ in the sense of acquiring key properties of Christ, but the process continues. As Paul writes to the Philippians:
I want to know Christ and the power of his resurrection and the sharing of his suffering by becoming like him in his death, if somehow I may attain the resurrection from the dead. Not that I have already obtained this or have already reached the goal; but I press on to make it my own, because Christ Jesus has made me his own. (Philippians 3:10–12)
As in the model we have sketched here, Paul considers himself to be ‘becoming like [Christ] in his death’, which we might see as the gaining of properties in common with Christ that Christ had in virtue of having died. Resurrection, however, still lies in the future, as a state to be pursued and made possible only ‘because Christ Jesus has made me his own’.
There is one more advantage to this model. We have seen Edwards's suggestion that Jesus’ identity as the Son rests in some way upon his sharing certain properties of the Son. He enjoyed perfect similarity to the Son, as a result of which he was the Son. If the Christian is undergoing a long process of gaining properties in common with Christ – i.e. becoming more and more like Christ – then there might come a point at which the Christian too comes to be perfectly like him, and therefore also identical with the Son. This is the traditional Christian doctrine of theōsis or divinization.Footnote 53 To discuss this fully is well beyond the scope of this article, but as is well known, Orthodox Christianity lays particular emphasis on this doctrine, according to which the ultimate goal of humanity is to become divine, usually understood as sharing in God's properties though not his nature.Footnote 54 Here we may simply note that this version of the PMA unites this doctrine not only with incarnation but with atonement as well.Footnote 55
Participation beyond the PMA
The ‘objective’ versions of the PMA described above aim to answer the most serious objection to the model: how can the Christian be said to ‘participate in’ Christ, and why should this have salvific value? There are still gaps in the model. In particular, the objections raised earlier regarding the conception of sin as a corruption have not been addressed. These objections to the model may prove harder to answer than those we have focused on here.
But there is another way of looking at participatory atonement, which is – once again – suggested by Jonathan Edwards. As noted above, Edwards did not hold the PMA as outlined in this article. But he did sometimes use language very reminiscent of it. In Miscellanies 281 he writes, for example:
The threatening, ‘Thou shalt surely die’ [Genesis 2:17] is properly fulfilled in the death of Christ . . . [By] this threatening, according to the proper and true sense of it, is to be understood that mankind, or the human nature, should die; so that death should belong to all the persons. Now if any way can be found out . . . whereby an actual death should as much belong to all the persons as if every person died, so that it may properly be called their death and yet they saved alive, the threatening is fulfilled. But this is done by the union of their persons with Christ's person: they are made so much one that his death belongs to them; they own it, it is their death, in as proper a sense as Adam's sin is their sin – they sin in Adam and they die in Christ. (WJE XIII 379–380)Footnote 56
In this passage Edwards gives no indication that he thinks that the atonement consists in this ‘owning’ of Christ's death.Footnote 57 But in Miscellanies 398 he presents it as an essential prerequisite for atonement:
Query. What are those qualifications and circumstances of the person of Christ that renders it a just, proper and suitable thing, that he should be looked upon by God as representing those he undertook for in suffering, so that his suffering shall be looked upon as equivalent to theirs, and answering to it, or so that his suffering should be really equivalent, and properly answering to their suffering?
Ans. 1. One thing is, that he was so united to them, so much one with them, that he may be justly looked upon as the same. (WJE XIII 463)Footnote 58
In this latter passage, Edwards goes on to develop a rather different account of the union between Christ and believers, based not (explicitly) on the Holy Spirit but on Christ's self-giving love for humans. But what is striking is that, here, Edwards offers an interpretation of the Reformed penal substitution approach to atonement that incorporates a strongly participatory element.Footnote 59 One of the common objections to penal substitution is that it would be unjust for God to punish one person in place of another.Footnote 60 Edwards answers that, in a sense, Christ is the same person as the sinner, and so it is just for God to punish him.Footnote 61
This is a very different use of the notion of participation compared to the model we have been developing. In that model, punishment plays no role: Christ's death is not the transference of the punishment due the sinner but the means to allow the sinner to escape her old, sinful identity and acquire a new one. Edwards shows that the concept of participation may be a useful element in a number of different possible soteriological models, not just the version of the PMA that we have been considering in this article, and it may help those models overcome common criticisms. If this is so, then the task of showing participation to be a meaningful and plausible notion is of lasting value to a wide range of theological thought about atonement.Footnote 62