Moses is going to be pharoah eventually. Found in a river and adopted, he is raised to love music and is infatuated with Osiris. It seemed to me like his initial reasoning for finding and learning from Jethro was pure. He wanted to learn the old songs out of curiosity. How did Moses warp so much?
Even after Moses learned all of Jethro’s songs he was happy with that. He said that he would always remember Jethro in his heart whenever he played those songs. Jethro responds with a thinly veiled attempt to get Moses to join his family. I believe this came from an entirely pure place, not trying to become part of the pharoah-to-be’s family but instead just because he liked Moses. They had spent several months together and for some reason Jethro even considered Moses as a son after just the first day because of his stunt of saving the cows that his daughter’s were watching from being heckled by the lackeys that Moses found in the first place. In this alternate history it seems like everyone is incredibly gullible. A quick side note, how did Moses become good at a random 25 string instrument in only a few months?? After that time he should only be able to play basic songs, nothing should sound good either. Yet somehow is is good enough to play duets with Jethro.
Moses stays because there is still more to learn, but already he seems to be showing the first signs of being power hungry. Why else would he willingly marry Zipporah out of the blue after one day when he had apparently been “using” all of Jethro’s daughters however he wanted to. Also wtf Jethro how are you not suspicious, the polyamourous Moses is suddenly monogamous and commits to one of the daughters. Moses learns the secret words and is getting ready to leave and yet again Jethro comes in with the suspicious timing “ooh what about the ancient book in Koptos now you have to come back someday”. This time at least Jethro isn’t too suspicious, it isn’t the right moon phase after all. Side note, I think Moses did actually love Zipporah to an extent considering how he was going to leave and go back to Egypt with her.
This time when Moses stays longer and then goes camping, Jethro does become suspicious. He knows what Moses really wants. The confusing part is in how easily Moses is swayed by Set. It’s on thing to blindly agree to Set’s conditions about the cult of Aton but know he has completely morphed as a person. Realistically it would make more sense for Moses to agree but then never follow through. Instead Moses comes back, initially acts secretive, then blows up and gets mad at Jethro. Why would Moses listen to Jethro the entire time, then suddenly ignore when Jethro gives the warning that he would get the evil side of the book? From what we were told, Set did not do all that much or say anything that should have caused this behavior. What do you think caused this change in Moses?