Numbers 18:26-28

KJ2000(i) 26 Thus speak unto the Levites, and say unto them, When you take of the children of Israel the tithes which I have given you from them for your inheritance, then you shall offer up a heave offering of it for the LORD, even a tenth part of the tithe. 27 And this your heave offering shall be reckoned unto you, as though it were the grain of the threshing floor, and as the fullness of the winepress. 28 Thus you also shall offer a heave offering unto the LORD of all your tithes, which you receive of the children of Israel; and you shall give thereof the LORD'S heave offering to Aaron the priest.