Ph.D.. Duke University, 1964
M.A 1957; BD. 1960 Andrews University
B.A, Southern Adventist University, 1956
Taught 32 years full time at Saint Mary’s College; and because of institutional connections also taught at the undergraduate and graduate programs of the University of Notre Dame.
For 20 years taught at the Hispanic Program of Northern Baptist Theological Seminary, McCormick theological Seminary and Lutheran School of Religion in Chicago, in an arrangement of the Chicago Cluster of Theological Schools.
Published four books
Paul of Tarsus: His Gospel and Life, Andrews University Press, 1986, rev. ed. 1988.
A Day of Gladness: The Sabbath Among Jews and Gentiles in Antiquity. University of South Carolina Press, 2001.
Cross-Cultural Paul: Journeys to Others, Journeys to Ourselves, Eerdmans, 2003
Finding My Way in Christianity: Recollections of a Journey, Energion Publications, 2010
Under contract to deliver Ms to publisher Oct. 20, 2011. Creation in Scripture. Energion Publications, forthcoming 2012.