Deuteronomy 21:10-14

MSB(i) 10 When you go to war against your enemies and the LORD your God delivers them into your hand and you take them captive, 11 if you see a beautiful woman among them, and you desire her and want to take her as your wife, 12 then you shall bring her into your house. She must shave her head, trim her nails, 13 and put aside the clothing of her captivity. After she has lived in your house a full month and mourned her father and mother, you may have relations with her and be her husband, and she shall be your wife. 14 And if you are not pleased with her, you are to let her go wherever she wishes. But you must not sell her for money or treat her as a slave, since you have dishonored her.