Deuteronomy 21:14-16

Christian Standard Bible

¹⁴ Then if you are not satisfied with her, you are to let her go where she wants, but you must not sell her or treat her as merchandise,^[a] because you have humiliated her.

The Right of the Firstborn

¹⁵ “If a man has two wives, one loved and the other neglected, and both the loved and the neglected bear him sons, and if the neglected wife has the firstborn son, ¹⁶ when that man gives what he has to his sons as an inheritance, he is not to show favoritism to the son of the loved wife as his firstborn over the firstborn of the neglected wife.