Born 1923; 1955-64 Professor of Church History and New Testament, University of Dubuqe; 1958 PhD; 1964-69 Associate Professor of Religion, University of Iowa; 1969-94 Norris Professor of NT Interpretation, Andover Newton; 1994 Lecturer in New Testament, Yale Divinity School. Norris Professor of New Testament Interpretation emeritus, Andover Newton Theological School.
