Genesis 25
21 Ref Isaac made prayer to the Lord for his wife because she had no children; and the Lord gave ear to his prayer, and Rebekah became with child.
22 Ref And the children were fighting together inside her, and she said, If it is to be so, why am I like this? So she went to put her question to the Lord.
23 Ref And the Lord said to her, Two nations are in your body, and two peoples will come to birth from you: the one will be stronger than the other, and the older will be the servant of the younger.