David Stoop, PhD, was a licensed clinical psychologist in California. He received a master's in theology from Fuller Theological Seminary and a doctorate from the University of Southern California. He was frequently heard as a cohost on the nationally syndicated New Life Live! radio and TV program. David was the founder and director of the Center for Family Therapy in Newport Beach, California. He was also an adjunct professor at Fuller Seminary and serves on the executive board of the American Association of Christian Counselors. David is a Gold Medallion-winning author who has written more than thirty books, including Forgiving the Unforgivable, and Rethink How You Think. David passed away in March 2021.