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.

John Armstrong is an author and editor, and a former pastor and church-planter.

D.A. Carson is emeritus professor of New Testament at Trinity Evangelical Divinity School in Deerfield, Illinois. He is a founding member of The Gospel Coalition, and the author of How Long, O Lord?

Doug Nichols serves as global missions advocate and mobilizer for Commission to Every Nation.

Tom Steller is serving through Training Leaders International as the Director of Theological Education in Cameroon. He continues to serve as an elder at Bethlehem Baptist Church.