John Piper (DTheol, University of Munich) is the founder and teacher of desiringGod.org and the chancellor of Bethlehem College & Seminary. He served for 33 years as the senior pastor of Bethlehem Baptist Church in Minneapolis, Minnesota, and is the author of more than 50 books, including Desiring God, Don't Waste Your Life, This Momentary Marriage, A Peculiar Glory, and Reading the Bible Supernaturally. D. A. Carson (PhD, Cambridge University) is research professor of New Testament at Trinity Evangelical Divinity School, where he has taught since 1978. He is a cofounder of the Gospel Coalition and has written or edited nearly 120 books. He and his wife, Joy, have two children and live in the north suburbs of Chicago. David Mathis serves as the executive editor at desiringGod.org, a pastor at Cities Church, and an adjunct professor at Bethlehem College & Seminary. His articles regularly appear at desiringGod.org/mathis. David and his wife, Megan, have three children. Owen Strachan (PhD, Trinity Evangelical Divinity School) is associate professor of Christian theology and director of the Theological and Cultural Engagement at Midwestern Baptist Theological Seminary. He also serves as president of the Council on Biblical Manhood and Womanhood.