John Piper (DTheol, University of Munich) is the founder and teacher of DesiringGod.org and the chancellor of Bethlehem College and 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.