John Piper (DTheol, University of Munich) is the founder and teacher of desiringGod.org and the chancellor of Bethlehem College & Seminary. He served for thirty-three years as the senior pastor of Bethlehem Baptist Church in Minneapolis, Minnesota, and is the author of more than fifty books, including Desiring God; Don’t Waste Your Life; This Momentary Marriage; A Peculiar Glory; and Reading the Bible Supernaturally.