If thou shalt hear say in one of thy cities,.... A report concerning them, anyone of them: which the Lord thy God had given thee to dwell there; which he had not only given them, but had put them into the possession of, and it was become their dwelling place, or was inhabited by Israelites; otherwise they were already given unto them, but did not inherit and inhabit them, and it might be possible that there might be some city or cities, at least for a time, which, though given them, were not inhabited by them, but by the Canaanites, and such cities this law did not concern: saying; as follows.