John Piper (theologian)
John Stephen Piper (born January 11, 1946, Chattanooga, Tennessee) is a Reformed Baptist theologian, preacher, and author. He is the pastor for preaching of Bethlehem Baptist Church in Minneapolis, Minnesota, and has written many books. He started the evangelical ministry named Desiring God, after his book Desiring God: Meditations of a Christian Hedonist.