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.

Randy Alcorn is a best-selling author of many books and the director of Eternal Perspective Ministries.

Dwight Perry is professor of homiletics and leadership at North Park University in Chicago.

George Verwer (1938–2023) founded and served as international director for Operation Mobilization.