14 But if you marry her and she does not please you, you must let her go free. You may not sell her or treat her as a slave, for you have humiliated her.

Matthew Henry's Commentary on Deuteronomy 21:14

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.