Genesis 25:24-28

And when her days to be delivered were fulfilled, behold, there were twins in her womb. And the first came out red, all over like an hairy garment; and they called his name Esau. 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. And the boys grew: and Esau was a cunning hunter, a man of the field; and Jacob was a plain man, dwelling in tents. And Isaac loved Esau, because he did eat of his venison: but Rebekah loved Jacob.