Ezekiel 48:14

And they shall not sell any of it or exchange it, or allow this choice portion of land to pass to others; for it is holy to the Lord.

Leviticus 27:28

‘But nothing that a man sets apart [that is, devotes as an offering] to the Lord out of all that he has, of man or of animal or of the fields of his own property, shall be sold or redeemed. Anything devoted to destruction (banned, cursed) is most holy to the Lord.

Exodus 22:29

“You shall not delay the offering from your harvest and your vintage. You shall give (consecrate, dedicate) to Me the firstborn of your sons.

Leviticus 23:20

The priest shall wave them before the Lord as a wave offering, together with the bread of the first fruits and the two lambs. They are to be holy to the Lord for the priest.

Leviticus 25:34

But the pasture lands of their cities may not be sold, for that is their permanent possession.

Leviticus 27:9-10

‘Now if it is an animal of the kind which men can present as an offering to the Lord, any such that one gives to the Lord shall be holy.

Leviticus 27:32-33

For every tithe of the herd or flock, whatever passes under the [shepherd’s] staff, the tenth one shall be holy to the Lord.

Ezekiel 48:12

And this [land offering] shall be an allotment to them from the allotment of the land, a most holy portion beside the border of the [other] Levites.

Malachi 3:8-10

“Will a man rob God? Yet you are robbing Me! But you say, ‘In what way have we robbed You?’ In tithes and offerings [you have withheld].

Treasury of Scripture Knowledge

Summary

And they shall not sell of it, neither exchange, nor alienate the firstfruits of the land: for it is holy unto the LORD.

Bible References

They shall

Exodus 22:29
“You shall not delay the offering from your harvest and your vintage. You shall give (consecrate, dedicate) to Me the firstborn of your sons.
Leviticus 27:10
He shall not replace it or exchange it, a good for a bad, or a bad for a good; but if he does exchange an animal for an animal, then both the original offering and its substitute shall be holy.

For

Ezekiel 48:12
And this [land offering] shall be an allotment to them from the allotment of the land, a most holy portion beside the border of the [other] Levites.
Leviticus 23:20
The priest shall wave them before the Lord as a wave offering, together with the bread of the first fruits and the two lambs. They are to be holy to the Lord for the priest.
Leviticus 27:9
‘Now if it is an animal of the kind which men can present as an offering to the Lord, any such that one gives to the Lord shall be holy.
Malachi 3:8
“Will a man rob God? Yet you are robbing Me! But you say, ‘In what way have we robbed You?’ In tithes and offerings [you have withheld].