John Bolt (PhD, University of St. Michael’s College) is professor of systematic theology at Calvin Theological Seminary in Grand Rapids, Michigan. He is the author and editor of several books. John and his wife, Ruth, have three children and nine grandchildren. Stephen J. Nichols (PhD, Westminster Theological Seminary) serves as the president of Reformation Bible College and chief academic ... Read moreofficer of Ligonier Ministries. He has written over twenty books and is an editor of the Theologians on the Christian Life series. He also hosts the weekly podcast 5 Minutes in Church History. Justin Taylor (PhD, The Southern Baptist Theological Seminary) is the executive vice president of book publishing and book publisher at Crossway. He has edited and contributed to several books, and he blogs at Between Two Worlds—hosted by the Gospel Coalition. Show Less