I'm surprised you haven't at least heard of John Chrysostom.
By the way, have you ever heard of Claudius Ptolemy?
You're not claiming Ptolemy as a Christian or Biblical exegetic, surely? (Incidentally, Newton and Brahe both believed a lot of Ptolemy's work was faked)
You're not claiming Ptolemy as a Christian or Biblical exegetic, surely? No, only that his book, "Almagest", was available centuries before your Cosmas Indicopleustes was around.
The world of Cosmas, about 548 A.D., was patterned after a Tabernacle. I don't believe the Bible mentions a tabernacle shaped world, but I could be wrong.
Image courtesy of the Ethical Atheist.
