Robert A. Guelich is Professor of New Testament at Fuller Theological Seminary. He holds the B.A. from Wheaton College, M.A. from the University of Illinois, S.T.B. from Fuller Theological Seminary, and the D.Theol. from the University of Hamburg. He has also done postgraduate studies at the University of Aberdeen and the University of Tubingen. His previous publications include The Sermon on the Mount: A Critical-Historical Commentary; Matthew in the New International Commentary; and as Editor; Unity and Diversity in New Testament Theology: Festschrift for George Ladd.