Genesis 25:27-34 - Esau Sells His Birthright
27 And the boys came to full growth; and Esau became a man of the open country, an expert bowman; but Jacob was a quiet man, living in tents. 28 Now Isaac's love was for Esau, because Esau's meat was greatly to his taste: but Rebekah had more love for Jacob.
29 And one day Jacob was cooking some soup when Esau came in from the fields in great need of food; 30 And Esau said to Jacob, Give me a full meal of that red soup, for I am overcome with need for food: for this reason he was named Edom.
31 And Jacob said, First of all give me your birthright.
32 And Esau said, Truly, I am at the point of death: what profit is the birthright to me?
33 And Jacob said, First of all give me your oath; and he gave him his oath, handing over his birthright to Jacob. 34 Then Jacob gave him bread and soup; and he took food and drink and went away, caring little for his birthright.