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 Come, Lord Jesus.

Leonce Crump II is the Lead Pastor of Vision & Preaching at Renovation Church in Atlanta, Georgia. He and his wife Breanna have two daughters.

Tim Keesee is the founder and executive director of Frontline Missions International. He has traveled to more than ninety countries, reporting on the church. He is the executive producer of Dispatches from the Front and author of A Company of Heroes.

Jason Meyer served for eight years as pastor for preaching and vision at Bethlehem Baptist Church. He’s the author of Don't Lose Heart: Gospel Hope for the Discouraged Soul. He and his wife, Cara, have four children.