Deuteronomy 21:10-14

10“When you go out to war against your enemies, and Adonai your God hands them over to you and you take them captive,

11suppose you see among the captives a beautiful woman, and you desire her and would take her as a wife for yourself.

12Then you are to bring her into your house, and she must shave her head, trim her nails,

13and remove her captive’s clothing, then sit in your house and weep for her father and mother a full month. After that, you may go to her and become her husband and she will be your wife.

14Now if you are not pleased with her, then you may send her off wherever she wishes. But you must certainly not sell her for silver—you may not treat her as merchandise, since you have humiliated her.