Benjamin Mast is a licensed clinical psychologist, board certified geropsychologist, and associate professor and vice chair in the department of psychological and brain sciences at the University of Louisville. He serves as an elder at Sojourn Community Church, and he is the author of Second Forgetting: Remembering the Power of the Gospel in Alzheimer’s Disease (Zondervan).

Tony Reinke serves as Senior Teacher for Desiring God, host of the Ask Pastor John podcast, and author of Ask Pastor John: 750 Bible Answers to Life’s Most Important Questions (2024). He and his wife live in Phoenix.