John is Professor Emeritus at Messiah College and Senior Pastor Emeritus at Grantham Church. At the beginning of his career, he was pastor for five years at Fairland Brethren in Christ Church in Cleona, Pennsylvania, and before retirement, he pastored the Grantham Church for four years. Between those two ministries, he taught at Messiah College for 33 years. He also taught at Messiah’s Temple campus for two years, at Daystar University in Kenya for a year, and at four African educational institutions for a term each. He is married to Amy; they have two children and five grandchildren.