Genesis 25:31 BBE

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.