Matthew Poole and continuators on Leviticus 25:34

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

Of which see on Numb. 35. 5.

Not sold at all, partly, because it was of absolute necessity for them for the keeping of their Cattle, and partly because these were no enclosures, but common fields, in which all the Levites that lived in such a City had an interest, and therefore no particular Levite could dispose of his part in it. Some conceive, that this Law was altered in ensuing ages, which they gather from Ier. 32. 7, 8. &c. and Act. [illegible: 1+ letters]. 36, 37. But those examples do not prove it. That sale of Ieremiahs was made by a particular dispensation and command of God, and that in a time when the Levites, as well as the people, were to be destroyed or dispersed and carried into captivity, and therefore could receive no considerable injury by it: and besides this sale was onely made formally and for signification, as it is explained, ver. 14, 15. And for the land sold by Barnabas a Levite Act. 4. as it was at a time when the Jewish Church was dissolved, and their state upon the brinks of utter ruine, so it is not evident that it was such Suburb land, which would have yielded but a small price, but it might be other land, either such as he might have in right of his wife, or such as he might have purchased. For though the Levites in general had no other share of land beside this, allotted them by God, yet it is conceived that particular Levites might purchase lands to themselves.