Genesis 25:31
31 Jacob said, “Sell me your birthright now.”
Genesis 25:33
33 Jacob said, “Swear to me now.” So he swore to him and tsold his birthright to Jacob.
Genesis 27:36
36 Esau said, u“Is he not rightly named Jacob?1 For he has cheated me these two times. vHe took away my birthright, and behold, now he has taken away my blessing.” Then he said, “Have you not reserved a blessing for me?”