11 and see among the captives a beautiful woman , and have a desire for her and would take her as a wife for yourself, 12 then you shall bring her home to your house , and she shall shave her head and trim her nails . 13 "She shall also remove the clothes of her captivity and shall remain in your house , and mourn her father and mother a full month ; and after that you may go in to her and be her husband and she shall be your wife .

Matthew Henry's Commentary on Deuteronomy 21:11-13

Commentary on Deuteronomy 21:10-14

(Read Deuteronomy 21:10-14)

By this law a soldier was allowed to marry his captive, if he pleased. This might take place upon some occasions; but the law does not show any approval of it. It also intimates how binding the laws of justice and honour are in marriage; which is a sacred engagement.