Genesis 25:20-28

20And Isaac was forty years old when he took Rebecca as wife, the daughter of Bethuel the Syrian of Padan-Aram, the sister of Laban the Syrian.

21And Isaac entreated Jehovah for his wife, because she was barren; and Jehovah was entreated of him, and Rebecca his wife conceived.

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

23And Jehovah said to her, Two nations are in thy womb, And two peoples shall be separated from thy bowels; And one people shall be stronger than the other people, And the elder shall serve the younger.

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

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

26And after that came his brother out; and his hand took hold of Esau's heel; and his name was called Jacob. And Isaac was sixty years old when they were born.

27And the boys grew, and Esau became a man skilled in hunting, a man of the field; and Jacob was a homely man, dwelling in tents.

28And Isaac loved Esau, because venison was to his taste; and Rebecca loved Jacob.