Book excerpt: In Christianity in the making, James D.G. Dunn examines in depth the major factors that shaped first-generation Christianity and beyond, exploring the parting of the ways between Christianity and Judaism, the Hellenization of Christianity, and responses to Gnosticism. He mines all the first- and second-century sources, including the New Testament Gospels, New Testament apocrypha, and such church fathers as Ignatius, Justin Martyr, and Irenaeus, showing how the Jesus tradition and the figures of James, Paul, Peter, and John were still esteemed influences but were also the subject of intense controversy as the early church wrestled with its evolving identity.