Thematic Bible: In villages, inalienable

But the houses in villages which have no walls round about them, shall be counted like unto the fields of the country, and may be bought out again at any season, and shall go out free in the trumpet year. Notwithstanding, the cities of the Levites and the houses in the cities of their possessions the Levites may redeem at all seasons. And if a man purchase ought of the Levites: whether it be house or city that they possess, the bargain shall go out in the trumpet year for the houses of the cities of the Levites, are their possessions among the children of Israel.