Genesis 25:23 in the King James Version
And the LORD said unto her, Two nations are in thy womb, and two manner of people shall be separated from thy bowels; and the one people shall be stronger than the other people; and the elder shall serve the younger.
Context
22 The children struggled together within her. She said, “If it is like this, why do I live?” She went to inquire of the LORD.
23 The LORD said to her, “Two nations are in your womb. Two peoples will be separated from your body. The one people will be stronger than the other people. The elder will serve the younger.”
24 When her days to be delivered were fulfilled, behold, there were twins in her womb.