Albert Barnes Commentary Deuteronomy 13:12

"If thou shalt hear tell concerning one of thy cities, which Jehovah thy God giveth thee to dwell there, saying," — Deuteronomy 13:12 (ASV)

City was to keep jealous watch over city, as man over man. The clause which the Lord your God has given you to dwell in significantly reminds them that the real ownership of their dwellings rested in the Lord , and that they, the mere tenants, must not allow His property to become a center of rebellion against His just authority.