Deuteronomy 21:11-13

EJ2000(i) 11 and seest among the captives a beautiful woman and hast a desire unto her that thou would have her to thy wife, 12 then thou shalt bring her home to thine house, and she shall shave her head and pare her nails, 13 and she shall put off the clothing of her captivity 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.