Dr. John Casteel began his ministry as a missionary, planting churches in Latin America. In 1968, John and his wife Marguerite moved from Mexico to Tucson Arizona, where they raised their family and began the ministry of Grace Chapel. The Church grew to become a ministry center with a large congregation. After 39 years of pastoral leadership John now serves at large as an overseer and teacher.
His message is profound, filled with life-changing principles, based completely on the Word of God. He minsiters with a primary focus on Latin America and Arizona. He is ordained with the International Church of the Foursquare Gospel, and serves Southeast Arizona. He received his Doctor of Divinity degree from Southern California Theological Seminary in 1988. He has four children and eight grandchildren. He and his wife reside in Tucson, Arizona.