Moses, with the 2-letter name/title of ‘MS’, can mean “Serpent” as well as “Priest” in Sumerian cuneiform. This is the male equivalent of the title Pythoness that we encounter in ancient Greek culture.
Moses (or more correctly, Moshe) appears to represent-while-co-opting the old school religion of the Judaean highlands: the one represented by the persistence of the metal snake on a pole.
Moses is so strongly associated with snakes that Exodus even has to explain it!: God tells Moses that his staff will become a snake to convince Pharaoh.
And Moses is presented as having given the proto-Judaeans the serpent pole and that it was revered.
During the exile in Babylon, the priests are described as having become embedded in the Babylonian and Persian esoteric ranks.
Not surprisingly, the returnees, come to supposedly reinstate their religion in fact bring a very reformed cultus to Jerusalem and the new temple project!