Exodus 4:22

And thou shall say unto Pharaoh,.... When arrived in Egypt, and in his presence:

thus saith the Lord; he was to declare to him that he came in his name, and by his orders, and, as an ambassador of…

My firstborn - The expression would be perfectly intelligible to Pharaoh, whose official designation was “son of Ra.” In numberless inscriptions the Pharaohs are styled “own sons” or “beloved sons” of…

Israel is my son, even my firstborn - That is, The Hebrew people are unutterably dear to me.

Here, I. Moses obtains leave of his father-in-law to return into Egypt, Exo 4:18. His father-in-law had been kind to him when he was a stranger, and therefore he would not be so uncivil as to leave…