John Gills Exposition of the Bible Commentary - Deuteronomy 21:10
When thou goest forth to war against thine enemies ,.... This refers to an arbitrary war, as Jarchi remarks, which they entered into of themselves, of choice, or through being provoked to it by their enemies; and not a war commanded by the Lord, as that against the seven nations of Canaan, and against Amalek; since there were to be no captives in that war, but all were to be destroyed: and the Lord thy God hath delivered them into thine hands ; given them the victory over their enemies,... 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