Numbers 16:3

16:3 And they assembled against Moses and Aaron, saying to them, “You take too much upon yourselves, seeing that the whole community is holy, every one of them, and the Lord is among them. Why then do you exalt yourselves above the community of the Lord?”

Numbers 18:24

18:24 But I have given to the Levites for an inheritance the tithes of the Israelites that are offered to the Lord as a raised offering. That is why I said to them that among the Israelites they are to have no inheritance.”