Iain M. Duguid (PhD, University of Cambridge) is professor of Old Testament and dean of online learning at Westminster Theological Seminary. He is the author of numerous commentaries and articles, including Turning the World Upside Down. In addition to his academic work, he has been a pastor and church planter for over thirty years, having planted churches in England, California, and Pennsylvania.James M. Hamilton Jr. (PhD, The Southern Baptist Theological Seminary) is professor of biblical theology at the Southern Baptist Theological Seminary and preaching pastor at Kenwood Baptist Church.Jay Sklar (PhD, University of Gloucestershire) is professor of Old Testament and vice president of academics at Covenant Theological Seminary.