Bachelor, Goshen College, 1954. Bachelor's Degree, Goshen College, 1956. Master of Arts, Yale University, 1961.
Doctor of Philosophy, Yale University, 1962.
Principal, Rockway Mennonite school, Kitchener, Ontario, 1956-1960; professor Christian education, Associated Mennonite Biblical Seminary, Indiana, 1962-1996; dean, Association Mennonite Biblical Sems., Elkhart, Indiana, 1964-1979; dean emeritus, Association Mennonite Biblical Sems., Elkhart, 1996; director, Institute Mennonite Studies, 1990-1997. President Mennonite World Conference, 1984-1990.
Married Ruth Eileen Steinmann, December 22, 1950 (deceased December 1997). Children: Ross Lynn, Elizabeth, Michael, Deborah, Anne.