Deuteronomy 21:15-17

Tree of Life Version

¹⁵ “Suppose a man has two wives—the one loved and the other unloved—and both the loved and the unloved bear him sons. But it happens that the firstborn son belongs to the unloved wife. ¹⁶ Now on the day he lets his sons inherit what he has, he must not treat the loved one’s son as firstborn, in place of the unloved one’s son, who is the firstborn. ¹⁷ Rather, he must acknowledge the firstborn, the son of the hated one, by giving him a double portion of all that he has. For he is the first of his vigor—the right of the firstborn is his.