then it shall be, in the day that he causes his sons to inherit that which he has, that he may not make the son of the beloved the first-born before the son of the one regarded inferior, who is the first-born.
But he shall acknowledge the first-born, the son of the one regarded inferior, by giving him a double portion of all that he has, for he is the beginning of his strength. The right of the first-born is his.
And the sons of Reuben the first-born of Israel (for he was the first-born, but, inasmuch as he defiled his father's couch, his birthright was given to the sons of Joseph the son of Israel, and so the genealogy is not to be reckone
And he said, Is not he rightly name Jacob? For he has supplanted me these two times. He took away my birthright, and, behold, now he has taken away my blessing. And he said, Have thou not reserved a blessing for me?