Numbers 18:8

And the Lord spake unto Aaron
Having pointed out to him the duty of his office, he now informs him of the perquisites of it; or having told him what was his work, now what his wages, or what was his service, and now his maintenance: behold, I also have given thee the charge of my heave offerings, of
all the hallowed things of the children of Israel;
such as the heave shoulder and wave breast, and firstfruits, and all other holy things in general, such as were the most holy things; as in ( Numbers 18:9 ) ; and the lighter holy things, as the Jews call them, ( Numbers 18:11 ) ; the charge of these was given to keep for themselves, and for their families: unto thee have I given them by reason of the anointing:
because of his office as a priest, to which he was consecrated by anointing: and to thy sons by an ordinance for ever;
see ( Leviticus 7:34-36 ) .