Kaiser is Colman M. Mockler Distinguished Professor Emeritus of Old Testament and president emeritus of Gordon-Conwell Theological Seminary in South Hamilton, Massachusetts. For many years he served as professor of Old Testament and as dean and vice president for education at Trinity Evangelical Divinity School (Deerfield, Illinois). A frequent speaker at churches, camps, and conferences, he has written numerous books, including Toward an Exegetical Theology, Toward an Old Testament Theology, Toward Old Testament Ethics, and The Messiah in the Old Testament.