Leviticus 7:35

35 This is the anointing of Aaron, and of his sons, that is, (their portion of) the offering in the day of their anointing, in the ceremonies of the Lord, in the day wherein Moses offered them, that they should be set in priesthood, (This is the portion for Aaron, and for his sons, out of the offerings given on the day of their installation, or their ordination, in the ceremonies of the Lord, on the day when they were presented to serve as priests,)

Leviticus 7:35 Meaning and Commentary

Leviticus 7:35

This [is the portion] of the anointing of Aaron
Of his being anointed to the priestly office; this is the part allotted and assigned him for the execution of it; this is the reward, as Aben Ezra interprets it, of his faithful performance of it, namely, his having the wave breast and heave shoulder of the peace offerings, and a cake out of everyone of the unleavened cakes, together with the leavened bread, besides other perquisites from other offerings: and of the anointing of his sons;
the successors of him in the priest hood; the Targum of Jonathan adds, above all their brethren the Levites: out of the offerings of the Lord made by fire;
out of such whose fat on the several parts of them was burnt with fire, such as the peace offerings were: in the day when he presented them to minister unto the Lord in the
priest's office;
when they were ordered to be taken out from among the children of Israel, and to be consecrated to, and invested with, the priest's office, as they were by Moses, and presented by him unto him as his priests; at that time the above portion was assigned them, as follows.

Leviticus 7:35 In-Context

33 He that of Aaron's sons offereth the blood, and the inner fatness, shall have also the right shoulder in his portion. (Yea, the priest, of the sons of Aaron, who offereth the blood, and the inner fat, shall also have the right shoulder for his portion.)

34 For I have taken from the sons of Israel the breast of raising, and the shoulder of separating, of their peaceable sacrifices, and I have given those to Aaron the priest and to his sons, by everlasting law, of all the people of Israel. (For I have taken from the Israelites the breast of raising, as a special gift, and the shoulder of separating, as a special contribution, out of their peace offerings, and I have given them to Aaron the priest, and to his sons, by an everlasting law, from all the people of Israel.)

35 This is the anointing of Aaron, and of his sons, that is, (their portion of) the offering in the day of their anointing, in the ceremonies of the Lord, in the day wherein Moses offered them, that they should be set in priesthood, (This is the portion for Aaron, and for his sons, out of the offerings given on the day of their installation, or their ordination, in the ceremonies of the Lord, on the day when they were presented to serve as priests,)

36 and which things the Lord commanded to be given to them of the sons of Israel, by everlasting religion in their generations. (and which things the Lord commanded to be given to them by the Israelites, by an everlasting law for all their generations.)

37 This is the law of burnt sacrifice, and of sacrifice for sin, and for trespass, and for hallowing, and for the sacrifices of peaceable things; (This then is the law for burnt sacrifices, grain offerings, sin offerings, trespass offerings, installation, or ordination, offerings, and peace and thank offerings;)