Guest Assistant Professor in the Dept. of Philosophy and Religion, 1980-1982; Assistant Professor in the Dept. of Philosophy and Religion, 1983-1984, Grove City College
Assistant Professor of New Testament, 1984-1986; Associate Professor 1987-1992; Professor 1992-2000; Director of the Th.M. in Biblical Theology Degree Program 1992-, Gordon-Conwell Theological Seminary
Kenneth T. Wessner Chair of Biblical Studies and Professor of New Testament, 1999-2010; Coordinator for the M.A. in Biblical Exegesis program, Fall 2001, Wheaton College Graduate School
Ordained by the Conservative Congregational Christian Conference in 1992