Genesis 25:26-34

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. When the boys grew up, Esau became a skillful hunter, a man of the field, but Jacob was a peaceful man, living in tents. Now Isaac loved Esau, because he had a taste for game, but Rebekah loved Jacob. When Jacob had cooked stew, Esau came in from the field and he was famished; 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. But Jacob said, “First sell me your birthright.” Esau said, “Behold, I am about to die; so of what use then is the birthright to me?” And Jacob said, “First swear to me”; so he swore to him, and sold his birthright to Jacob. Then Jacob gave Esau bread and lentil stew; and he ate and drank, and rose and went on his way. Thus Esau despised his birthright.