This chapter examines the three foundational strands that shaped early Christianity and, in turn, western thought: Judaism, Hellenistic philosophy, and Roman culture. It begins with Judaism, emphasizing its monotheism, prophetic self-criticism, and teleological view of history – features that deeply influenced Christian theology. The Book of Isaiah is central, offering themes of justice, suffering, and messianic hope later interpreted as prefiguring Christ. The chapter then turns to Hellenistic philosophy – especially, Stoicism, Skepticism, and Epicureanism – which informed Christian ideas about the soul, virtue, and the good life. These schools stressed moral discipline and the pursuit of wisdom, values that Christianity absorbed and reinterpreted theologically. The Roman contribution centered on imperial power, civic virtue, and especially the Latin language, which became Christianity’s primary medium in the West. Roman thinkers like Cicero and Virgil helped transmit Greek ideas, emphasizing duty, eloquence, and destiny. These strands – Jewish, Greek, and Roman – were not seamlessly integrated, but their dynamic interaction laid the groundwork for a western intellectual tradition rooted in moral inquiry, historical depth, and a universalizing spiritual vision.