Genesis 25:24-26 New Revised Standard Version (NRSV)
24 When her time to give birth was at hand, there were twins in her womb. 25 The first came out red, all his body like a hairy mantle; so they named him Esau. 26 Afterward his brother came out, with his hand gripping Esau’s heel; so he was named Jacob.[a] Isaac was sixty years old when she bore them.