Paul David Tripp, M.Div., D.Min. Dr. Tripp is Director of Changing Lives International, counselor and faculty member of the School of Biblical Counseling at CCEF and lecturer in Practical Theology at Westminster Theological Seminary. He is the author of Age of Opportunity: A Guide to Parenting Teens, War of Words: Getting to the Heart of Our Communication Struggles, Instruments In the Redeemer's Hands and numerous articles.