Deuteronomy 21:10-13

10When thou goest forth to war against thine enemies, And Yhwh thy God hath delivered them into thine hands, and thou hast taken them captive, 11And seest among the captives a beautiful woman, and hast a desire unto her, that thou wouldest have her to thy wife; 12Then thou shalt bring her home to thine house; and she shall shave her head, and pare her nails;1 13And she shall put the raiment of her captivity from off her, and shall remain in thine house, and bewail her father and her mother a full month: and after that thou shalt go in unto her, and be her husband, and she shall be thy wife.