but you shall devote them to complete destruction, the Hittites and the Amorites, the Canaanites and the Perizzites, the Hivites and the Jebusites, as the LORD your God has commanded,
They are here directed what method to take in dealing with the cities (these only are mentioned, Deu 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.
Commenting on Deuteronomy 20:10-20
But thou shalt utterly destroy them,.... Men, women, and children: some think this is to be understood only of such cities which did not accept of terms of peace; for they are of opinion that Joshua made proclamation of peace to all the cities of Canaan; which being not complied with, he destroyed them as they fell into his hands; and they suppose that the...
Deu 20:15-18 It was in this way that Israel was to act with towns that were far off; but not with the towns of the Canaanites (“these nations”), which Jehovah gave them for an inheritance. In these no soul was to be left alive; but these nations were to be laid under the ban, i.e., altogether exterminated, that they might not teach the Israelites their abominations and sins (cf.
Commenting on Deuteronomy 20:15-18