John Wesley on Deuteronomy 13:15

The inhabitants - Namely, all that are guilty, not the innocent part, such as disowned this apostacy, who doubtless by choice, at least upon warning, would come out of so wicked a place. Utterly - The very same punishment which was, inflicted upon the cities of the cursed Canaanites, to whom having made themselves equal in sin, it is but just God should equal them in punishment.