© Charles Chandler

 

Tanakh	commentary
Genesis 13	Once in Canaan, Lot settled in Sodom, and Abraham settled in Hebron.
Genesis 15 Genesis 17	Amenhotep III wasn't pleased that Abraham was brokering alliances on the frontier, and felt obligated to get in the middle of the whole thing. So he offered a more powerful alliance — if Abraham would swear his loyalty to Egypt, the pharaoh would give Sarah a son. There are two passages describing the Covenant — in the Jahwist version, it's just a land grant, while in the Priestly version, Abraham & Sarah get new names, all of the males have to get circumcised, and Sarah would bear Isaac. It sounds like the father would be the pharaoh, or one of the other two men with him. Either way, this would install Abraham as the pharaoh's representative in Canaan, loyal to Egypt and not to Mesopotamia or Mitanni.
Genesis 18:1-15	The pharaoh's entourage showed up, to deliver on the promise of giving Sarah a son.
Genesis 21:1-21	Sarah gave birth to a son, as promised. The pharaoh insisted that this son inherit the Covenant, not Abraham's son by Hagar. So Abraham sent Hagar & Ishmael away.
Genesis 21:22-34	Still, Abraham made an alliance with Abimelech, perhaps on Hagar's behalf.