David Chapman (PhD, University of Cambridge) is professor of New Testament and Archaeology at Covenant Theological Seminary. He is also the author of Ancient Jewish and Christian Perceptions of Crucifixion. He presents research and lectures worldwide.

John D. Currid (PhD, University of Chicago) is the Carl W. McMurray Professor of Old Testament at Reformed Theological Seminary. He is currently an adjunct faculty member at the Jerusalem Center for Biblical Studies in Jerusalem, Israel, and serves as project director of the Bethsaida Excavations Project in Israel (1995-present). He lectures and preaches worldwide.