Numbers 18:8

And the Lord said to Aaron, And I, behold, I have given you the charge of My heave offerings [whatever is taken out and kept of the offerings made to Me], all the dedicated and consecrated things of the Israelites; to you have I given them [as your portion] and to your sons as a continual allowance forever by reason of your anointing as priests. [Lev. 7:35.]