Numbers 18:26-28 Moreover thou shalt speak unto the Levites, and say unto them, When ye take of the children of Israel the tithe which I have given you from them for your inheritance, then ye shall offer up a heave-offering of it for Jehovah, a tithe of the tithe.

ASV_Strongs⁽ⁱ⁾

26 H1696 Moreover thou shalt speak H3881 unto the Levites, H559 and say H3947 unto them, When ye take H1121 of the children H3478 of Israel H4643 the tithe H5414 which I have given H5159 you from them for your inheritance, H7311 then ye shall offer H8641 up a heave-offering H3068 of it for Jehovah, H4643 a tithe H4643 of the tithe.

27 H8641 And your heave-offering H2803 shall be reckoned H1715 unto you, as though it were the grain H1637 of the threshing-floor, H4395 and as the fulness H3342 of the winepress.

28 H7311 Thus ye also shall offer H8641 a heave-offering H3068 unto Jehovah H4643 of all your tithes, H3947 which ye receive H1121 of the children H3478 of Israel; H5414 and thereof ye shall give H3068 Jehovah's H8641 heave-offering H175 to Aaron H3548 the priest.