Genesis 25:32-34

Esau said, “I’m starving! What good is a birthright if I’m dead?” Jacob said, “First, swear to me.” And he did it. On oath Esau traded away his rights as the firstborn. Jacob gave him bread and the stew of lentils. He ate and drank, got up and left. That’s how Esau shrugged off his rights as the firstborn. * * *