Albert Barnes Commentary Deuteronomy 21:10

"When thou goest forth to battle against thine enemies, and Jehovah thy God delivereth them into thy hands, and thou carriest them away captive," — Deuteronomy 21:10 (ASV)

The regulations which now follow in the rest of this and throughout the next chapter bring out the sanctity of various personal rights and relations fundamental to human life and society.

(Deuteronomy 21:10–14). The war supposed here is one against the neighboring nations after Israel had utterly destroyed the Canaanites , and taken possession of their land.