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.

Leviticus 27:28

Notwithstanding, no devoted thing, that a man shall devote unto Jehovah of all that he hath, whether of man or beast, or of the field of his possession, shall be sold or redeemed: every devoted thing is most holy unto Jehovah.

Exodus 22:29

Thou shalt not delay to offer of thy harvest, and of the outflow of thy presses. The first-born of thy sons shalt thou give unto me.

Leviticus 23:20

And the priest shall wave them with the bread of the first-fruits for a wave-offering before Jehovah, with the two lambs: they shall be holy to Jehovah for the priest.

Leviticus 25:34

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

Leviticus 27:9-10

And if it be a beast, whereof men offer an oblation unto Jehovah, all that any man giveth of such unto Jehovah shall be holy.

Leviticus 27:32-33

And all the tithe of the herd or the flock, whatsoever passeth under the rod, the tenth shall be holy unto Jehovah.

Ezekiel 48:12

And it shall be unto them an oblation from the oblation of the land, a thing most holy, by the border of the Levites.

Malachi 3:8-10

Will a man rob God? yet ye rob me. But ye say, Wherein have we robbed thee? In tithes and offerings.

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
Thou shalt not delay to offer of thy harvest, and of the outflow of thy presses. The first-born of thy sons shalt thou give unto me.
Leviticus 27:10
He shall not alter it, nor change it, a good for a bad, or a bad for a good: and if he shall at all change beast for beast, then both it and that for which it is changed shall be holy.

For

Ezekiel 48:12
And it shall be unto them an oblation from the oblation of the land, a thing most holy, by the border of the Levites.
Leviticus 23:20
And the priest shall wave them with the bread of the first-fruits for a wave-offering before Jehovah, with the two lambs: they shall be holy to Jehovah for the priest.
Leviticus 27:9
And if it be a beast, whereof men offer an oblation unto Jehovah, all that any man giveth of such unto Jehovah shall be holy.
Malachi 3:8
Will a man rob God? yet ye rob me. But ye say, Wherein have we robbed thee? In tithes and offerings.

American Standard Version Public Domain