Joe Rigney (MA, Bethlehem College and Seminary) is assistant professor of theology and Christian worldview at Bethlehem College and Seminary in Minneapolis, Minnesota. He is the author of Live Like a Narnian: Christian Discipleship in C.S. Lewis’s Chronicles and The Things of Earth: Treasuring God by Enjoying His Gifts. He lives in Minneapolis with his wife and two sons.
John Piper (DTheol, University of Munich) is teacher and founder of desiringGod.org and chancellor of Bethlehem College and Seminary. He served for 33 years as pastor at Bethlehem Baptist Church in Minneapolis and is author of more than 50 books, including Desiring God,Don’t Waste Your Life, This Momentary Marriage, Bloodlines, and Does God Desire All to Be Saved?