Mike Bullmore (PhD, Northwestern University) serves as the senior pastor of Crossway Community Church in Bristol, Wisconsin. He was formerly professor of homiletics/practical theology and department chair at Trinity Evangelical Divinity School in Deerfield, Illinois. Mike lives in Kenosha, Wisconsin, with his wife, Beverly. They have three children.
D. A. Carson (PhD, Cambridge University) is research professor of New Testament at Trinity Evangelical Divinity School, where he has taught since 1978. He is a cofounder of the Gospel Coalition and has written or edited nearly 120 books. He and his wife, Joy, have two children and live in the north suburbs of Chicago.
TIMOTHY KELLER is founder and pastor of Redeemer Presbyterian Church in New York. He is the best-selling author of The Prodigal God and The Reason for God.