Genesis 25:24-26, 30

And when the time came for Rebekah to give birth, sure enough, she had twins! The first one came out reddish and covered with hair like a hairy garment; so they named him Esau. And his brother came out with his hand grasping Esau’s heel; so, they named him Jacob. Isaac was sixty when the twins were born.

Smelling the aroma of food, Esau said to Jacob, “I’m starving! Let me eat some of that red stuff you’re cooking.” (This is why he is also called Edom.)