Numbers 18:27

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.`

25 And Jehovah speaketh unto Moses, saying,

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;

29 out of all your gifts ye do lift up the whole heave-offering of Jehovah; out of all its fat, -- its hallowed part -- out of it.

30 `And thou hast said unto them, In your lifting up its fat out of it, then it hath been reckoned to the Levites, as increase of a threshing-floor, and as increase of a wine-vat;