These are the family records of Isaac son of Abraham. Abraham fathered Isaac.
References for Genesis 25:19
Isaac was 40 years old when he took as his wife Rebekah daughter of Bethuel the Aramean from Paddan-aram, and sister of Laban the Aramean.
Isaac prayed to the Lord on behalf of his wife because she was barren. The Lord heard his prayer, and his wife Rebekah conceived.
But the children inside her struggled with each other, and she said, "Why is this happening to me?" So she went to inquire of the Lord.
References for Genesis 25:22
And the Lord said to her: Two nations are in your womb; two people will [come] from you and be separated. One people will be stronger than the other, and the older will serve the younger.
References for Genesis 25:23
When her time came to give birth, there were indeed twins in her womb.
The first one came out reddish, covered with hair like a fur coat, and they named him Esau.
References for Genesis 25:25
After this, his brother came out grasping Esau's heel with his hand. So he was named Jacob. Isaac was 60 years old when they were born.
References for Genesis 25:26