Numbers 18:27-29

Young's Literal Translation

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.