Many recent scholars have wanted to link the Akenaten’s monotheism with the emergence of the monotheism of the Israelites. Certainly, it is the earliest text referring to monotheism, but it really doesn’t say where that idea emerged. My speculation was that Joseph told him (or perhaps his father). While it only leaves 100-150 years until Ramesses II (who has traditionally been the Pharoh associated with Moses), it would otherwise explain a great deal about the persecution that the Israelites received under subsequent Pharohs.