Philip Graham Ryken (DPhil, University of Oxford) is the eighth president of Wheaton College. He preached at Philadelphia’s Tenth Presbyterian Church from 1995 until his appointment at Wheaton in 2010. Ryken has published more than fifty books, including When Trouble Comes and expository commentaries on Exodus, Ecclesiastes, and Jeremiah. He serves as a board member for the Gospel Coalition and the Lausanne Movement.Michael LeFebvre (PhD, University of Aberdeen) is an ordained Presbyterian minister and an Old Testament scholar. He is also a fellow with the Center for Pastor Theologians. Michael and his wife, Heather, have five children and live in Indianapolis, Indiana.