Genesis 25:21-25 New Revised Standard Version (NRSV)
21 Isaac prayed to the Lord for his wife, because she was barren; and the Lord granted his prayer, and his wife Rebekah conceived. 22 The children struggled together within her; and she said, “If it is to be this way, why do I live?”[a] So she went to inquire of the Lord. 23 And the Lord said to her,
“Two nations are in your womb,
24 When her time to give birth was at hand, there were twins in her womb. 25 The first came out red, all his body like a hairy mantle; so they named him Esau.