John D. Hannah (PhD, University of Texas at Dallas) is research professor of theological studies and distinguished professor of historical theology at Dallas Theological Seminary. He is a frequent...view more John D. Hannah (PhD, University of Texas at Dallas) is research professor of theological studies and distinguished professor of historical theology at Dallas Theological Seminary. He is a frequent church and conference speaker both at home and abroad. He remains active in church ministries and serves on the boards of several organizations. view less