No one really wants to get me started on "the Flood" ... but just a couple of things:
Since Genesis 7:20 says that the flood covered the highest mountains by about 15 - 18 feet, that means that Mount Everest was covered and the water was 29,050 feet deep. And the ark supposedly floated on water at this altitude. Oxygen? Temperature? No one can survive at those altitudes and under those conditions. Do you realize how much that water weighed?
And where did all this water go? The math doesn't add up. Where did all this water go?
The earth has a radius of 3,963 miles on average. When flooded, again according to a literal interpretation, the earth would have had a radius of 3,968.5 miles. The difference is 1,086,984,344.03497 cubic MILES of water. Cubic miles. MILES. Over one billion ... with a B.
How many gallons are in a cubic mile? 1,101,117,147,428.5715 ... that’s 1.1 trillion ... with a T.
So basically multiply one billion by one trillion and that’s how many gallons of water would’ve had to evaporated in less than one year. Only about 120,000 cubic miles of water evaporate from the earth every year. It would’ve taken over 9,058 years to evaporate all the water that’s claimed to have fallen in the fable of Noah’s Ark. And where did it go? Fable.
The "Law" wouldn’t be given for hundreds and hundreds more years. How did Noah know what were “clean” and “unclean” animals? Those definitions were not established for hundreds more years. Since it’s pretty well accepted that the early chapters of Genesis were written by up to three, and possibly four, different individuals, the references to “clean” animals was probably written later by a priest and that portion of the story was added so as to not offend the Hebrews who questioned whether Noah brought “clean” animals aboard the ark for food. They had their own cognitive bias too.
Here’s another one: fresh water. How did Noah provide a year’s worth of fresh water to all these animals? The entire story is an impossibility and if you’re willing to do the slightest shred of research, you’ll find that the story was copied from older civilizations, then adapted to make it palatable to the Hebrews when the story was written down in 800 - 600 BCE.