To summarize what I'm reading here...
Mallon: Various passages throughout the Bible describe or otherwise assume a "three-tiered" cosmology. In the middle is the earth, otherwise described in terms of being flat, stationary, and resting upon massive pillars. More pillars (the mountains?) hold up a crystalline firmament; within this firmament are the sun and moon and stars, as well as windows that hold back the celestial waters (which otherwise pass through as rain). Above the celestial waters is heaven itself. Below the earth, at the roots of its pillars, is sheol, and beneath that is the abyss, essentially depthless waters. The Bible does not provide any manner of systematic exposition on this cosmology, but, again, various passages in the Bible consistently describe or otherwise assume this cosmology... and this cosmology just so happens to be the same cosmology that is taught and assumed in virtually every contemporary non-Biblical writing that has something to say about the formation of the cosmos. Because everyone at that time thought that this was the way the world was, and the Jews go on to describe this as the way the world was, we have no justifiable reason to simply assume that they didn't actually think that was what the world was actually like. For example, when Joshua commands for the sun to stop in the sky, we have no real reason to assume that Joshua didn't naturally assume that the sun actually was in the sky and could be stopped in place (as opposed to claiming that Joshua actually believed that the earth revolved around the sun and that the earth would be the thing stopping in order for the sun to remain visible for an entire day).
Greg1234: This is an attack on creationism, and/or an argument in favor of Darwin/evolution.
mark kennedy: Although the Bible does consistently describe a cosmology that otherwise agrees with a summarized cosmology of all of the Ancient Near Eastern cultures contemporary to the writers of the Bible, the writers did not believe that this is the way the world worked, and the Bible doesn't teach any model of cosmology.
My thoughts: I agree, more or less, with Mallon. I also agree that I don't understand how in the world Greg1234 could suddenly jump tracks and claim that Mallon was intentionally attacking creationism, or that he was intentionally promoting Darwinism. As to mark kennedy, I agree that the Bible does not systematically teach any model of cosmology, but I think it's incredulous to think that the authors themselves didn't write with an understanding of a particular model of cosmology that they thought was true, especially when the cosmology that shows through here and there in the books of Genesis or Joshua or Job is entirely consistent to how every other ANE culture understood the world. The Babylonians thought that there was X about the physical universe, and the Bible just so happens to describe X as if it was the case. The Egyptians thought that there was Y about the physical universe, and the Bible just so happens to describe Y as if it was the case.
The Bible doesn't teach a three-tiered cosmology, in the sense that it teaches "Jesus is the only way to salvation"... but the Biblical authors did assume that three-tiered cosmology, in the sense that I assume gravity will continue to work as long as the earth is spinning at its present speed and has a consistent amount of mass.
Acknowledging that the Biblical authors assumed such a cosmology that is not presently scientifically accurate does not inherently undermine creationism (the world was still created either way), and it does not inherently promote Darwinism/evolution (how in the world does "the author of Genesis perceived the world as being sheltered by a crystalline firmament holding back celestial waters" equate to "the Darwinian view of evolution is true"?)... but it does necessitate approaching the text of Scripture from another angle, one that is not rooted in post-Enlightenment literalism or scientific concordism... Rather, an angle that says "how would God's originally-intended audience have understood what was being said here?" (e.g. How would Yohanan, a random descendent of the tribe of Judah, standing at the foot of Mount Sinai, have understood Genesis 1's description of a "firmament" when Moses first read the book to the people of Israel?)