Numbers 18:20-26

MLV(i) 20 And Jehovah said to Aaron, You will have no inheritance in their land, neither will you have any portion among them. I am your portion and your inheritance among the sons of Israel. 21 And to the sons of Levi, behold, I have given all the tithe in Israel for an inheritance, in return for their service which they serve, even the service of the tent of meeting.
22 And hereafter the sons of Israel will not come near the tent of meeting, lest they bear sin and die. 23 But the Levites will do the service of the tent of meeting and they will bear their iniquity. It will be an everlasting statute throughout your* genealogy. And among the sons of Israel they will have no inheritance.
24 For the tithe of the sons of Israel, which they offer as a heave offering to Jehovah, I have given to the Levites for an inheritance. Therefore I have said to them, Among the sons of Israel they will have no inheritance.
25 And Jehovah spoke to Moses, saying, 26 Moreover you will speak to the Levites and say to them, When you* take from the sons of Israel the tithe which I have given you* from them for your* inheritance, then you* will offer up a heave offering of it for Jehovah, a tithe of the tithe.