Pastor Mark Kelderman is Dean of Students and Spiritual Formation, as well as Instructor in Pastoral Theology at Puritan Reformed Theological Seminary. He serves as a pastor to local PRTS students. A former high school teacher, he completed his seminary training at PRTS and served as the pastor of Heritage Reformed Church in Burgessville, Ontario for 13 years. He is presently seeking his Doctor of Ministry from Reformed Presbyterian Theological Seminary, specializing in biblical counseling. He and his wife Donna have been engaged in serving the church of Christ through Biblical counseling and recently they have begun to speak more publicly about sexual addiction, abuse and healing. They have six children: Jeremy (Adriana), Rachel (Gerard), Micah (Kim), Nathan, Caleb, Hannah, and one grandchild. He is also involved in helping establish a local Chinese fellowship in the Heritage Reformed Church of Grand Rapids.