Dr. Derek W.H. Thomas is senior minister of the First Presbyterian Church in Columbia, S.C., and Chancellor's Professor of Systematic and Pastoral Theology at Reformed Theological Seminary. He is a Ligonier Ministries teaching fellow and author of many books, including How the Gospel Brings Us All the Way Home, Calvin's Teaching on Job, Strength for the Weary, and, with Dr. Sinclair B. Ferguson, Ichthus: Jesus Christ, God's Son, the Saviour.