Dane C. Ortlund (PhD, Wheaton College) serves as senior pastor of Naperville Presbyterian Church in Naperville, Illinois. He is the author of Gentle and Lowly: The Heart of Christ for Sinners and Sufferers and Deeper: Real Change for Real Sinners. Dane and his wife, Stacey, have five children.

Stephen J. Nichols (PhD, Westminster Theological Seminary) serves as the president of Reformation Bible College and chief academic officer 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, including A God-Entranced Vision of All Things and Reclaiming the Center, and he blogs at Between Two Worlds—hosted by the Gospel Coalition.