John Gills Exposition of the Bible Commentary - Deuteronomy 20:12
And if it will make no peace with thee ,.... Will not accept of terms of peace offered: but will make war against thee ; come out and fight, or prepare to defend themselves: then thou shall besiege it; surround and block it up on all sides with their forces; the Jews say only on three sides, leaving one for any to flee and make their escape if they thought fit; See Gill on Numbers 31:7 . read more
Matthew Henry's Complete Commentary - Deuteronomy 20:10-20
They are here directed what method to take in dealing with the cities (these only are mentioned, Deut. 20:10; but doubtless the armies in the field, and the nations they had occasion to deal with, are likewise intended) upon which they made war. They must not make a descent upon any of their neighbours till they had first given them fair notice, by a public manifesto, or remonstrance, stating the ground of their quarrel with them. In dealing with the worst of enemies, the laws of justice and... read more