Herman Ridderbos has been professor of New Testament studies in the Theological Seminary at Kampen, the Netherlands, since 1943. He has become well known in America through his writings, including a volume on Galatians in the New International Commentary on the New Testament, Paul and Jesus, When the Time Had Fully Come, The Authority of the New Testament Scripture, Paul: An Outline of his Theology, Studies in Scripture and Its Authority, and a monograph on Bultmann in the Modern Thinkers Series of the International Library of Philosophy and Theology.