Marvin Meyer is one of the foremost scholars on early Christianity and texts about Jesus outside the New Testament. He is Griset Professor of Bible and Christian Studies at Chapman University in Orange, California. Among his recent books are The Gospel of Judas, The Gnostic Gospels of Jesus, The Gospels of Mary, The Gospel of Thomas, and The Nag Hammadi Scriptures. JAMES M. ROBINSON is the founding director emeritus of the Institute for Antiquity and Christianity, and professor emeritus at Claremont Graduate University. He is the author of Trajectories through Early Christianity and A New Quest of the Historical Jesus.