Dr. Mark Hanby accepted the pastorate of a small church in Fort Worth, Texas, after being a guest speaker for several years. Under his direction, the church grew to become Truth Church, one of the first mega-churches in the nation and the largest of its denomination. Internationally known as a dynamic speaker of church government and spiritual order, Dr. Hanby is a prolific author and widely esteemed as an apostolic father to the church at large. He has personally ministered in more than seventy countries.

Roger Roth, Sr., has partnered with Dr. Hanby in his ministry and writing for many years. Together they oversee Mark Hanby Ministries/Fathers Heart Ministries, an internationally recognized teaching and resource center.