then it shall be, on the day he makes his sons to inherit his possessions, he is not allowed to treat the son of the beloved wife as first-born in the face of the son of the unloved, who is truly the first-born.
“But he is to acknowledge the son of the unloved wife 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.