And Yitzchak his father said unto him, Who art thou? And he said, I am thy son, thy firstborn Esav.
And he came unto his father, and said, My father: and he said, Here am I; who art thou, my son?
And Yaakov said, Swear to me this day; and he sware unto him: and he sold his birthright unto Yaakov.
Then Yaakov gave Esav bread and pottage of lentiles; and he did eat and drink, and rose up, and went his way: thus Esav despised his birthright.