Numbers 18:23-28

Thomson(i) 23 but the Levites themselves are to perform the service of the tabernacle, and to bear their sins, this shall be a perpetual due for their generations, and they shall have no inheritance among the children of Israel. 24 Because I have given the Levites for their portion the tithes of the children of Israel, which they set apart for the Lord, as a dedication, therefore I have said to them, they shall have no lot of inheritance among the Israelites. 25 Then the Lord spoke to Moses, saying, 26 Thou shalt speak to the Levites and say to them; When you take from the children of Israel the tenth which I have given you from them for a lot of inheritance, you shall set apart from it, as a dedication for the Lord, a tenth of the tenth; 27 and these dedications of yours shall be reckoned to you as corn from the threshing floor, and as a dedication from the press. 28 Thus you shall acquit yourselves of all the dedications of the Lord; of all your tenths which you receive from the children of Israel. And you shall give the dedication set apart from it for the Lord to Aaron the priest.