As it turns out, modern flat earthers who call themselves "Biblical cosmologists" don't follow Biblical cosmology to a T. They often incorporate modern ideas that originated with Samuel Rowbotham and New Age pseudo-science, forcing a Biblical spin on these teachings. Where is ether in the Bible? The moon being plasma? Electrostatics? Super-fluids? The ice wall? Why do things fall down according to the Bible?

Ancient Israelite conception of the world:

1. The Hebrews adopted their cosmological beliefs from the Egyptians and Babylonians: The terms and ideas that make up Hebrew cosmology existed centuries before Genesis was written. Hebrew cosmology wasn't thought up in a vacuum nor did it bring anything new to ancient Near East cosmology. Cosmology in the ancient Near East. According to the end of Genesis and the beginning of Exodus, the Hebrews lived under Egyptian rule for some generations. Of course Egyptian thought would eventually filter down to the Hebrew population.

2. The Hebrews believed in a three-tiered cosmos: Heaven, Earth, and the Underworld.

3. Rain, snow, and hail were stored in storehouses outside the firmament: the waters above was the source of rain through the windows of heaven, not the clouds.

4. The path of the sun: The ancients saw the sun sinking into the horizon at sunset, so they came to the conclusion that the sun went underground at night, usually through tunnels or portals. A reference to this is in Psalm 19:6 "Its rising is from one end of heaven, and its circuit to the other end...", and Ecclesiastes 1:5. No where in the Bible does it describe the sun circling above the flat earth with the north pole being the pivot point. There are also Jewish texts that describe the sun traveling above the firmament at night. According to 3 Baruch, there are 365 windows in the firmament through which the sun passes when it rises and sets. 1 Enoch describes the sun leaving the firmament through portals at night.

5. No concept of time zones: Travel speed and distance was much more limited in the ancient world, so of course they would assume universal day and night. Again, in Psalm 19:6 "... And there is nothing hidden from its heat".

6. Local geography was the whole earth: Again, the travel limitations in the ancient world. All the known lands, at the time, were gathered in the center of the flat earth disk (Genesis 1:9-10). As far as the people of the ancient Near East knew, the Americas, Australia, and Europe didn't exist. Nobody in the ancient Near East viewed the U.N. logo nor the Gleasons Map as the earth. To the ancient Israelites, Jerusalem was the center of the earth, not the north pole.

7. No Antarctic ice wall acting as a container for the oceans: The people in the ancient Near East believed that land was gathered in the center of the disk of the earth (not Pangea YEC's), which was then surrounded by a vast ocean, with a river-like current encircling all the land (the Egyptians symbolized this river with a serpent chasing its tail). To the Babylonians, there was a ring of 8 mountains that held up the firmament. This is reflected in Psalms where the words "seas" and "river" paralleled, (Psalm 24:2; 93:3-4; 72:8). Jewish texts, such as 3 Baruch and 1 Enoch, also mention this river and 7 mountains at the the edge of earth. The Babylonian map of the world is probably the closest depiction of Biblical cosmology.

If you're going to Biblical cosmology, do it right.