Unto thee have I given them; not only the charge of them, but the use of them for thyself and family, in such manner as I have elsewhere expressed. The anointing, to wit, to the priestly office, i.e. because thou art priest, and art to devote thyself wholly to my service; which, that thou mayst perform more diligently and cheerfully, I give thee this recompence.
Related Commentaries of Numbers 18:8
Numbers 18:8
8 And the LORD spake unto Aaron, Behold, I also have given thee the charge of mine heave offerings of all the hallowed things of the children of Israel; unto thee have I given them by reason of the anointing, and to thy sons, by an ordinance for ever.