Stephen Witmer is the pastor of Pepperell Christian Fellowship in Pepperell, Massachusetts, and is an adjunct professor of New Testament at Gordon-Conwell Theological Seminary. He is also cofounder of Small Town Summits, an organization that serves rural churches and pastors.

Ortlund (Ph.D., Unversity of Aberdeen) is senior minister at Immanuel Church in Nashville, Tennessee. He has pastored churches in California, Oregon and Georgia and was formerly professor of Old Testament at Trinity Evangelical Divinity School inDeerfield, Illinois. He is also the author of A Passion for God (Eerdmans).