One of the things it does show is that the people who "late date" the books of the Bible are incorrect....."
Concur. When I was in law school, I had a professor who spent a lot of time having us read ancient history, written by the ancients. Because the ancient people would only tell the story form the perspective most favorable to them. The objective of his lessons was to learn how to state situation most favorable to your position in a persuasive manner.
Someone asked him why we did not study Bible. He said that the Bible wasn't written that way. He said the Bible was written more objectively than any history book he had ever read, e.g. King David committed adultery and had the husband killed.
That's the science of rhetoric.