Another issue with KJV is it doesn't preserve the names in Genesis. For example, we see in Chapter 1 the entirety is using God. In the original, we see "Elohim" being used and then secondary "Jehovah-Elohim".
Elohim, if I take Wardlaw and his citation from Rev. J. M. Denniston properly and he is correct, denotes plurality highlighting him as creator of the universe. Once Adam exists, then Jehovah-Elohim is used - the self-existing God with a covenant with Adam.
This solves the issue concerning two authors of Genesis. He also touches on the issue of the ages quite a bit. I think he has another non-flat book out there concerning just this that I have yet to acquire.
My knowledge on this isn't very deep though and mostly has been picked up through flat earth texts. False Prophet might be able to shine some light on this. Didn't he say he was a translator?
All this is aside the point, as I feel Genesis depicts it fine enough in KJV.
And God said, Let there be a firmament in the midst of the waters, and let it divide the waters from the waters.
And God made the firmament, and divided the waters
which were under the firmament from the waters
which were above the firmament: and it was so.
And God called the firmament Heaven. And the evening and the morning were the second day.
Note he is clearly not saying (at least in KJV) that the waters are
within the firmament or
outside the firmament. They are above and below. To be below a spherical firmament means to be
outside of the firmament. To be above it as well means to be
outside of it. This makes no sense! The only interpretation that makes this sensible is the one in which the firmament is flat and thus has an 'above' and a 'below.'