Genesis 25:24

²²  And the children struggled together within her; and she said, If it be so, why am I thus? And she went to inquire of the LORD.

²³  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.

²⁴  And when her days to be delivered were fulfilled, behold, there were twins in her womb.

²⁵  And the first came out red, all over like an hairy garment; and they called his name Esau.

²⁶  And after that came his brother out, and his hand took hold on Esau's heel; and his name was called Jacob: and Isaac was threescore years old when she bare them.