George Kalantzis (PhD, Northwestern University) is professor of theology and director of The Wheaton Center for Early Christian Studies at Wheaton College. He is the author of Caesar and the Lamb: Early Christian Attitudes on War and Military Service and Theodore of Mopsuestia: Commentary on the Gospel of John, and he is the coeditor of Evangelicals and the Early Church: Recovery, Reform, Renewal; Life in the Spirit: Spiritual Formation in Theological Perspective; Christian Political Witness; and The Sovereignty of God Debate.