Who are "the Hebrews"? Bible authors didn't borrow from anyone. [2Ti 3:16 NIV] All Scripture is God-breathed and is useful for teaching, rebuking, correcting and training in righteousness, It doesn't say "scripture is borrowed" from other cultures. Also, it doesn't "some scripture is God-breathed,"
I don't think many Christians today fully understand their Bibles. Sadly they depend on science to explain history to them.
[1Co 3:1c-2 NIV] --mere infants in Christ. 2 I gave you milk, not solid food, for you were not yet ready for it. Indeed, you are still not ready.
[Gen 11:1, 9 NIV] Now the whole world had one language and a common speech.
Biblically, cultures don't develop until after the Babel event. Before that, it was all one language. Noah had all the necessary antediluvian revelation and information on the Ark and passed it down. After Babel, Noah's great-grandsons went in different directions and the seventy nations came to be.
[Gen 11:9 NIV] That is why it was called Babel--because there the LORD confused the language of the whole world. From there the LORD scattered them over the face of the whole earth.
When they explain the old stories they had passed down to them, post Babel, now with language change the stories change, yet retain some of the original context, but not all. Hence the worldwide flood views.
All mythologies reflect a lot of truth and a lot of confusion. Only the Bible has the true stories and explanations, including the firmament and cosmology.
[Job 37:18 ESV] Can you, like him, spread out the skies, hard as a cast metal mirror?
Notice there is no word atmosphere in the Bible.