John Piper is founder and teacher of desiringGod.org and chancellor of Bethlehem College & Seminary. For 33 years, he served as pastor of Bethlehem Baptist Church, Minneapolis, Minnesota. He is author of more than 50 books, including Desiring God: Meditations of a Christian Hedonist and most recently Providence.

Alistair Begg is the senior pastor of Parkside Church in Cleveland, Ohio, the Bible teacher at “Truth For Life,” and the author of Brave by Faith: God-Sized Confidence in a Post-Christian World. He is married to Susan, and together they have three grown children and five grandchildren.

Tom Steller is pastor for leadership development at Bethlehem Baptist Church in Minneapolis, and senior advisor to the president and dean of global and alumni outreach at Bethlehem College & Seminary.

George Verwer is the founder and former international director of Operation Mobilization.

David Wells is distinguished senior research professor at Gordon-Conwell Theological Seminary, and the author of numerous books.