New International Version - UK
21 Isaac prayed to the Lord on behalf of his wife, because she was childless. The Lord answered his prayer, and his wife Rebekah became pregnant. 22 The babies jostled each other within her, and she said, ‘Why is this happening to me?’ So she went to enquire of the Lord.
23 The Lord said to her,
‘Two nations are in your womb,
and two peoples from within you will be separated;
one people will be stronger than the other,
and the elder will serve the younger.’