Numbers 18:24

Overview - Numbers 18
The charge of the priests and Levites.
The priests' portion.
21 The Levites' portion.
25 The heave offering to the priests out of the Levites' portion.
Treasury of Scripture Knowledge

Numbers 18:24  (King James Version)
But the tithes of the children of Israel, which they offer as an heave offering unto the LORD, I have given to the Levites to inherit: therefore I have said unto them, Among the children of Israel they shall have no inheritance.

Malachi 3:8-10