Leviticus 1:7

1:7 and the sons of Aaron, the priest, must put fire on the altar and arrange wood on the fire.

Leviticus 7:10

7:10 Every grain offering, whether mixed with olive oil or dry, belongs to all the sons of Aaron, each one alike.

Leviticus 8:12

8:12 He then poured some of the anointing oil on the head of Aaron and anointed him to consecrate him.

Leviticus 16:8

16:8 and Aaron is to cast lots over the two goats, one lot for the Lord and one lot for Azazel.