Numbers 18:29

“Out of all your gifts ye shall offer every heave offering of the Lord, etc.] Not only out of their tithes, but out of whatsoever gifts were given by the Israelites to them, and out of the produce of the fields which belonged to their cities, (<043504>Numbers 35:4); the Levites were to take a tenth, and bring it to the Lord as an heave offering; that is, they were to give it to the priests, to testify their gratitude for everything they had, and to sanctify the rest unto them, and confirm their right and title to it, and give them the free use of it: of all the best thereof, [even] the hallowed part thereof, out of it; which was the tenth part, for that Was holy, as Aben Ezra says, and that…”

“Out of all your gifts - The spirit of this law would extend to all the revenues of the Levites; of the increase of their cattle, as well as of their tithes, a tithe would be paid by them for the Lord’s service. return to 'Top of Page'”

“Your gifts - Not only out of your tithes, but out of the other gifts which you receive from the people, and out of those fields which shall belong to your cities. Offer - To the priest. As many gifts, so many heave - offerings; you shall reserve a part out of each of them for the priest. The hallowed part - the tenth part, which was the part or proportion that God hallowed or sanctified to himself as his proper portion. Numbers 18:31”

“best: Heb. fat, Num 18:12 Numbers 18:30”

“The whole of this heave-offering of Jehovah, i.e., the tithe of the tithe, they were to lift off from all their gifts, from all the tithes of the people which they received; "of all the fat of it," i.e., of all the best of the heave-offering they received, they were to lift off את־מקדּשׁו, "its holy," i.e., the holy part, which was to be dedicated to Jehovah. Numbers 18:30”