NHEB(i)
15 If a man has two wives, the one loved, and the other unloved, and they have borne him children, both the loved and the unloved; and if the firstborn son is hers who was unloved;
16 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 loved the firstborn before the son of the unloved, who is the firstborn:
17 but he shall acknowledge the firstborn, the son of the unloved, by giving him a double portion of all that he has; for he is the beginning of his strength; the right of the firstborn is his.