The writings of Columbanus, Adomnán’s Life of Columcille and Bede’s account of the Irish mission to Northumbria together show us a church c. 600 remarkable for its austerity, its vitality and its happiness. Constant journeys and displacements, mean dwellings, common food, the discipline of study and prayer left the leaders not saddened but content, and commended them to the people’s veneration. The motive force of their actions was the love of God, followed with a rare degree of perfection; and, as the sources constantly say or imply, such love is no trouble. Vive in Christo ut Christus in te urges Columbanus, and Bede, in his sober summing-up on the Irish mission to Northumbria, while he disclaims any intimate knowledge of Columcille, testifies: ‘We know for certain that he left successors distinguished for their purity of life, their love of God and their loyalty to the monastic rule.’
The indifference to worldly interests which sustained these early pilgrims, and their concentration on purely religious values contrast sharply with the early ninth-century church, a great institution fully alive to the civilizing influence which power and wealth could exert. We need to know how this change came about, and in precisely what ways the church c. 800 differed from its predecessor.