Robert G. Clouse (PhD, University of Iowa) was professor emeritus of history at Indiana State University in Terre Haute, Indiana. He was also an ordained Brethren minister and served churches in Iowa and Indiana. His books include Meaning ofthe Millenium, Women in Ministry, War: Four Christian Views and Wealth and Poverty. He also wrote The New Millenium Manual (Baker), Two Kingdoms (Moody), The Story of the Church (Moody) and Puritans, the Millenium and the Future of Israel (Clarke, with Peter Toon).

Ladd, professor of New Testament exegesis and theology at Fuller Theological Seminary since 1950, was educated at Gordon College and Gordon Divinity School (B.D.) and received the Ph.D. from Harvard University. He also did postdoctoral study at Heidelberg and Basel Universities. Ordained as an American Baptist minister, Ladd served several churches in the denomination. He was professor of Greek at Gordon College (1942-45) and head of the department of New Testament at Gordon Divinity School (1946-50). His writings include Crucial Questions about the Kingdom of God (1952), The Blessed Hope (1956), The Gospel of the Kingdom (1959), Jesus Christ and History (1963), The New Testament and Criticism(1965), The Pattern of the New Testament (1968), Commentary on The Revelation (1972) and The Theology of the New Testament (1974).