I have found that the earliest Torah was actually the Greek Septuagint and it was only the first 5 books. The whole Bible was really a Greek invention with maybe a spattering of Jewish propaganda and history thrown in. I think this Torah was introduced to push a new beliefs as the Greeks were all about influencing the ones they concurred and Ptolemy even introduced a new hybrid god named Serapis.
Ptolemy wanted a unified empire with one religion to help him get to his goal. The Bible was a collection of stories and saying even about other gods reintroduced but edited to be about this new one god. Christians and then the Roman Catholic Church did much of the same pushing a new god which was just an old god retold and renamed. “There’s nothing new under the son”.