John Gills Exposition of the Bible Commentary - Deuteronomy 20:7
And what man is there that hath betrothed a wife, and hath not taken her ?.... Home to his house and bedded with her; has only betrothed her, but is not properly married to her, the nuptials are not completed; this the Jews understand of anyone betrothed to him, whether a virgin or a widow, or the wife of a deceased brother (yea, they say, if his brother is dead in war, he returns and comes home), but not of a former wife divorced and received again F13 Misn. Sotah, ib. sect. 2. : ... read more
Matthew Henry's Complete Commentary - Deuteronomy 20:1-9
Israel was at this time to be considered rather as a camp than as a kingdom, entering upon an enemy's country, and not yet settled in a country of their own; and, besides the war they were now entering upon in order to their settlement, even after their settlement they could neither protect nor enlarge their coast without hearing the alarms of war. It was therefore needful that they should have directions given them in their military affairs; and in these verses they are directed in managing,... read more