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 Reading the Bible Supernaturally.
Mark Dever is a pastor at Capitol Hill Baptist Church in Washington, D.C., the president of 9Marks (a ministry for churches and church leaders), and the author of many books, including Nine Marks of a Healthy Church. He and his wife, Connie, have two children.
Zane Pratt is dean of the Billy Graham School of Missions and Evangelism and associate professor of Christian missions at Southern Baptist Theological Seminary. He lived and worked in Central Asia for 20 years.