A few posts ago I more or less backed into a new thread on literary discrepancies found in the Pentateuch, the first five books of the Old Testament; these discrepancies are key to understanding why the books were almost certainly not written by a single person -- Moses, for example -- but are a combination of sources put together centuries after the stories were first placed in circulati0n.
I talk about this in my textbook: The Bible: A Historical and Literary Introduction. Here is how I discuss the matter there:
Read by Sam Devis