This is how Aaron is to enter the Holy Place: with a young bull for a sin offering and a ram for a burnt offering.
3. Thus shall Aaron come into the holy place. The rites and formality are now described; first, that Aaron should put on the holy garments, and wash his person; secondly, that he should offer a bullock and ram for a burnt-offering; thirdly, that he should take two goats from the people, one of which should be sent away alive, and the other slain in sacrifice.
Here is, I. The date of this law concerning the day of atonement: it was after the death of the two sons of Aaron (Lev 16:1), which we read, Lev 10:1. 1. Lest Aaron should fear that any remaining guilt of that sin should cleave to his family, or (seeing the priests were so apt to offend) that some after-sin of his other sons should...
Commenting on Leviticus 16:1-4
Thus shall Aaron come into the holy place,.... The most holy place; and this was after he had offered the daily sacrifice of the morning, and had performed the rest of the service then done, as Gersom observes; such as burning the incense and trimming the lamps, for no offering preceded the daily sacrifice: with a young bullock for a sin offering, and a ram...