17 But he shall acknowledge the son of the hated for the firstborn, and shall give him a double portion of all he hath: for this is the first of his children, and to him are due the first birthrights.
17
He must acknowledge the son of his unloved wife as the firstborn by giving him a double share of all he has. That son is the first sign of his father’s strength. The right of the firstborn belongs to him.