And he said, It is because his name is called 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 you not reserved a blessing for me?
And the sons of Reuben, the first-born of Israel (for he was the first-born; but since he defiled his father's bed, his birthright was given to the sons of Joseph the son of Israel, and the genealogy is not to be counted according to the birthright;
then it shall be in the day when he makes his sons to inherit what he has, he may not cause to inherit the son of the beloved first-born before the son of the hated one, he who is truly the first-born.
But he shall acknowledge the son of the hated as the first-born 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.