Clarence L. Goodwin Chair in New Testament Language and Literature at Butler University in Indianapolis, Indiana, USA. BD University of London, PhD Durham University. Author
of John's Apologetic Christology, The Only True God, Theology and Science Fiction, and The Burial of Jesus, as well as (with Charles Haberl of Rutgers University) the two-volume Mandaean Book of John critical edition, translation, and commentary. Also author of numerous articles (and a few science fiction short stories) and the editor or co-editor of several volumes.