Keith L. Johnson (PhD, Princeton Theological Seminary) is associate professor of theology at Wheaton College. His research focuses on the theology of the Reformers, theologians currently working in the developing world, the doctrines of the Trinity and Christology, the Reformed tradition and the relationship between Protestant and Roman Catholic theology. He is author, co-editor or contributor to books such as Karl Barth and the Analogia Entis, Theology Questions Everyone Asks, Evangelicals and the Early Church, Karl Barth and American Evangelicalism and Bonhoeffer, Christ and Culture. An ordained Baptist minister, he and his wife Julie have one son.