About D. A. Carson
D. A. Carson is research professor of the New Testament at Trinity Evangelical Divinity School. He is cofounder (with Tim Keller) of the Gospel Coalition, and has written or edited nearly sixty books. He has served as a pastor and is an active guest lecturer in church and academic settings around the world.
About Roy Worley
John Gottman, PhD, a leading research scientist on marriage and family, is emeritus professor of psychology at the University of Washington; executive director of his laboratory, the Relationship Research Institute; and cofounder of the Gottman Institute. He held an NIMH research scientist career award for twenty years. Dr. Gottman is the author of more than 200 professional journal articles and 42 books, as well as the recipient of numerous prestigious awards for his extensive contributions to marriage and family research.