'Cities of the Levites' in the Bible

Nevertheless the cities of the Levites, and the houses of the cities of their possession, may the Levites redeem at any time.

And if a man purchases a house from the Levites, then the house that was sold, and the city of his possession, shall be released in the year of 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 and eight cities with their pasture lands.