Deuteronomy 21:14
14 But if you have no delight in her, you are to let her go wherever she will; you may not take a price for her as if she was your property, for you have made use of her for your pleasure.
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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.