Since Joe and Howard, who are both Mark Twain Forum subscribers, don't seem
to
be coming forward to promote their own book, I'll answer Abe Bloom's
question.
The book you're looking for is:
        Baetzhold, Howard G., and Joseph B. McCullough, eds.  THE BIBLE
        ACCORDING TO MARK TWAIN: WRITINGS OF HEAVEN, EDEN, AND THE FLOOD.
        Athens: U of Georgia P, 1995.
The editors have done a great job with the material (as we all knew they
would).  It's definitely a book that one should obtain (even by purchasing,
if it comes to that).

Jim Leonard