Mark D. Roberts (PhD, Harvard University) is Senior Director and Scholar-in-Residence for Laity Lodge, a multifaceted ministry in the Hill Country of Texas. Previously, he was the Senior Pastor of Irvine Presbyterian Church in Southern California. He studied at Harvard University, where he received a Ph.D. in New Testament and Christian Origins. He has written several books, including his most recent: Can We Trust the Gospels? (Crossway, 2007).