'Cities of the Levites' in the Bible

But as to the cities of the Levites, the houses in the cities of their possession, the Levites shall have a perpetual right of redemption.

And if any one redeem from one of the Levites, then the house that was sold, in the city of his possession, shall go out in the jubilee; for the houses of the cities of the Levites are their possession among the children of Israel.

All the cities of the Levites within the possession of the children of Israel were forty-eight cities and their suburbs.