Genesis 25:12-28 (ESV)
12 These are the generations of Ishmael, Abraham's son, whom Hagar the Egyptian, Sarah's servant, bore to Abraham. 13 These are the names of the sons of Ishmael, named in the order of their birth: Nebaioth, the firstborn of Ishmael; and Kedar, Adbeel, Mibsam, 14 Mishma, Dumah, Massa, 15 Hadad, Tema, Jetur, Naphish, and Kedemah. 16 These are the sons of Ishmael and these are their names, by their villages and by their encampments, twelve princes according to their tribes. 17 (These are the years of the life of Ishmael: 137 years. He breathed his last and died, and was gathered to his people.) 18 They settled from Havilah to Shur, which is opposite Egypt in the direction of Assyria. He settled over against all his kinsmen.
19 These are the generations of Isaac, Abraham's son: Abraham fathered Isaac, 20 and Isaac was forty years old when he took Rebekah, the daughter of Bethuel the Aramean of Paddan-aram, the sister of Laban the Aramean, to be his wife. 21 And Isaac prayed to the Lord for his wife, because she was barren. And the Lord granted his prayer, and Rebekah his wife conceived. 22 The children struggled together within her, and she said, “If it is thus, why is this happening to me?” So she went to inquire of the Lord. 23 And the Lord said to her,
“Two nations are in your womb,
and two peoples from within you shall be divided;
the one shall be stronger than the other,
the older shall serve the younger.”
24 When her days to give birth were completed, behold, there were twins in her womb. 25 The first came out red, all his body like a hairy cloak, so they called his name Esau. 26 Afterward his brother came out with his hand holding Esau's heel, so his name was called Jacob. Isaac was sixty years old when she bore them.
27 When the boys grew up, Esau was a skillful hunter, a man of the field, while Jacob was a quiet man, dwelling in tents. 28 Isaac loved Esau because he ate of his game, but Rebekah loved Jacob.