Leviticus 25:34

But the field of the suburbs of their cities may not be sold; for it is their perpetual possession.

Cross-reference

Leviticus 25:23 states the land belongs to God and cannot be permanently sold — the same principle applied to Levitical pasture lands here.

Leviticus 25:10 establishes Jubilee return of possessions, while this verse specifies Levitical land is permanently held.

2 Chronicles 31:19 Historical context

2 Chronicles 31:19 shows Levites living in their common-lands, illustrating the permanent possession commanded here.