John Robertson spent spent over ten years in the ministry, as a deliverance minister at first and then as the Pastor of Calvary Full Gospel Church in Teague, Texas. John presently lives in the Dallas-Ft. Worth area. He is married to Joann, and they have four sons. He grew up in Louisiana and Texas, was raised Southern Baptist, and graduated from the University of Southwestern Louisiana with a BS degree in education in 1976. He has written one other book, Winning the Battles in Spiritual Warfare, which was released in the spring of 2013.