One simple point I liked in Karen's book about the history of God was that El was the name for god. Thus Bethel now makes sense. There was no "jah" in that word. So "house of god" is house of el.. . . Bethel.
And Moses would learn the "I AM" since none of his ancestors knew him as such. Jehovah was one of the 70 sons of EL and thus the Isrealites got to know Jehovah instead of El.
Oh well, I'm impressed easily.
Joy