Genesis 25:24-26, 30

When her days to be delivered were fulfilled, behold, there were twins in her womb. Now the first came forth red, all over like a hairy garment; and they named him Esau. Afterward his brother came forth with his hand holding on to Esau’s heel, so his name was called Jacob; and Isaac was sixty years old when she gave birth to them.

and Esau said to Jacob, “Please let me have a swallow of that red stuff there, for I am famished.” Therefore his name was called Edom.