John Gills Exposition of the Bible Commentary - Deuteronomy 21:12
Then thou shalt bring her home to thine house ,.... In order to make her his wife, after some things were done here directed to; for this is not to be understood of his taking her home with a view to defile her, as Maimonides F5 Moreh Nevochim, par. 3. c. 41. interprets it; who observes, that when a man's lust so rages that he cannot subdue it, yet he ought not publicly to satisfy his lust, but to have the woman into a private and secret place, as it is said: thou shalt bring her... read more
Matthew Henry's Complete Commentary - Deuteronomy 21:10-14
By this law a soldier is allowed to marry his captive if he pleased. For the hardness of their hearts Moses gave them this permission, lest, if they had not had liberty given them to marry such, they should have taken liberty to defile themselves with them, and by such wickedness the camp would have been troubled. The man is supposed to have a wife already, and to take this wife for a secondary wife, as the Jews called them. This indulgence of men's inordinate desires, in which their hearts... read more