Genesis 25:24-26, 30

And when her days to be delivered were fulfilled, behold, there were twins in her womb. And the first came forth red, all over like a hairy garment; and they called his name Esau. And after that came forth his brother, and his hand had hold on Esau’s heel; and his name was called Jacob: and Isaac was threescore years old when she bare them.

and Esau said to Jacob, Feed me, I pray thee, with that same red pottage; for I am faint: therefore was his name called Edom.