John Gill Commentary Ezekiel 48:14

"And they shall sell none of it, nor exchange it, nor shall the first-fruits of the land be alienated; for it is holy unto Jehovah." — Ezekiel 48:14 (ASV)

And they shall not sell of it Any part of it that is allotted to them, neither the priests nor the Levites; simony is not to be practised: neither exchange ; for any other land in lieu of it: nor alienate the first fruits of the land ; or appropriate them to any other use than that of the priests and Levites: whatever is appointed for ecclesiastic uses ought not to be converted to any other; nor should church privileges be parted with on any account: ministers and other officers, nay, even private Christians, should not part with their Christian liberty, nor with any of the doctrines and ordinances of the Gospel: for it is holy unto the Lord ; what is separated and devoted to religious uses is sacred to the Lord.