Bachelor magna cum laude, Houghton College, 1963. Master of Arts, National Christian University, 1972. Doctor of Theology, Clarksville School Theology, 1980.
Doctor of Philosophy, Christian Bible College, 1990.
Missionary Pocket Testament League, Argentina, Paraguay, Chile, Peru, Bolivia, 1963-1966. Minister Richfield (Pennsylvania) Mennonite Church, 1966—1968. Itinerant Bible teacher Bible Club Movement Inc., Upper Darby, Pennsylvania, 1968-2000, national representative, 1971-1977, director Family Adult Ministries department, 1977-1980, minister at large, 1980-1999, missionary, Bible teacher, 1999-2000.
President, Bible teacher David Clemens Bible Teaching Ministries, Inc., Marlton, since 2000. Preaching and teaching tours England, Scotland, The Netherlands, Belgium, Sweden, Spain, Ireland, Canada, Middle East, The Philippines, Zimbabwe, Poland, Cuba, Italy, Germany, Switzerland, Zambia, Guyana.
Member National Home Missions Fellowship.
Married Janice Ruth Bonino, February 13, 1965. Children: Stephen David, Daniel Lee.