Genesis 25:20

And Isaac was forty years old when he took Rebekah to wife,.... Which was three years after the death of his mother; Isaac was born when she was ninety, and therefore must be thirty seven when she…

- LIII. Birth of Esau and Jacob 20. פדן padān, Paddan, “plowed field;” related: “cut, plow.” 25. עשׂי ‛êśâv, ‘Esaw, “hairy, or made.” 26. יעקב ya‛ăqôb, Ja’aqob, “he shall take the heel.” 27. תם…

We have here an account of the birth of Jacob and Esau, the twin sons of Isaac and Rebekah: their entrance into the world was (which is not usual) one of the most considerable parts of their story;…

forty years old P gives the age of Isaac at the time of his marriage with Rebekah, thirty-five years before Abraham's death (Gen 25:25).

Bethuel P makes no mention here of Bethuel's being son of…