Numbers 18:25

22 `And the sons of Israel come no more near unto the tent of meeting, to bear sin, to die,

23 and the Levites have done the service of the tent of meeting, and they -- they bear their iniquity; a statute age-during to your generations, that in the midst of the sons of Israel they have no inheritance;

24 but the tithe of the sons of Israel which they lift up to Jehovah, a heave-offering, I have given to the Levites for inheritance; therefore I have said of them, In the midst of the sons of Israel they have no inheritance.`

26 `And unto the Levites thou dost speak; and thou hast said unto them, When ye take from the sons of Israel the tithe which I have given to you from them, for your inheritance, then ye have lifted up from it the heave-offering of Jehovah, a tithe of the tithe;

27 and your heave-offering hath been reckoned to you as corn from the threshing-floor, and as fulness from the wine-vat;

28 so ye do lift up -- ye also -- the heave-offering of Jehovah from all your tithes which ye receive from the sons of Israel; and ye have given from it the heave-offering of Jehovah to Aaron the priest;