For I have given to the Levites as their inheritance the tithe that the Israelites present to the LORD as a contribution. That is why I told them that they would not receive an inheritance among the Israelites."

Numbers 18:25
And the LORD instructed Moses,

Numbers 26:62
The registration of the Levites totaled 23,000, every male a month old or more; they were not numbered among the other Israelites, because no inheritance was given to them among the Israelites.

Deuteronomy 10:9
That is why Levi has no portion or inheritance among his brothers; the LORD is his inheritance, as the LORD your God promised him.

Deuteronomy 26:12
When you have finished laying aside a tenth of all your produce in the third year, the year of the tithe, you are to give it to the Levite, the foreigner, the fatherless, and the widow, that they may eat and be filled within your gates.

But the tithes of the children of Israel, which they offer as an heave offering to the LORD, I have given to the Levites to inherit: therefore I have said to them, Among the children of Israel they shall have no inheritance.