Leviticus 16:3

“Thus shall Aaron come into the holy [place], etc.] 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 for a burnt offering; which were both for himself and his family; and such were the weakness, imperfection, and insufficiency of the Levitical priesthood, and priests, that they were obliged first to offer for their own sins, and then for the sins of the people: the meaning is not, as Aben Ezra says, that he should bring the bullock…”

“Thus shall Aaron come into the holy place--As the duties of the great day of atonement led to the nearest and most solemn approach to God, the directions as to the proper course to be followed were minute and special. with a young bullock . . . and a ram--These victims he brought alive, but they were not offered in sacrifice till he had gone through the ceremonies described between Lev 16:3-11. He was not to attire himself on that occasion in the splendid robes that were proper to his sacred office, but in a plain dress of linen, like the common Levites, for, as he was then to make atonement for his own sins, as well as for those of the people, he was to appear in the humble character of a…”

“Holy place - This name here denotes the sanctuary, the whole sacred enclosure, the court of the tabernacle. The offerings were for Aaron and his sons, supplied by himself. return to 'Top of Page'”

“With a young bullock - That is, with the blood of it; the body of it was to be offered upon the altar of burnt - offerings. A sin - offering - For his own and family's sins; for a goat was offered for the sins of the people. Leviticus 16:4”

“Aaron: Heb 9:7, Heb 9:12, Heb 9:24, Heb 9:25 a young: Lev 4:3, Lev 8:14; Num 29:7-11 a ram for a burnt offering: Lev 1:3, Lev 1:10, Lev 8:18, Lev 9:3 Leviticus 16:4”

“Only בּזאת, "with this," i.e., with the sacrifices, dress, purifications, and means of expiation mentioned afterwards, could he go into "the holy place," i.e., according to the more precise description in Lev 16:2, into the inmost division of the tabernacle, which is called Kodesh hakkadashim, "the holy of holies," in Exo 26:33. He was to bring an ox (bullock) for a sin-offering and a ram for a burnt-offering, as a sacrifice for himself and his house (i.e., the priesthood, Lev 16:6), and two he-goats for a sin-offering and a ram for a burnt-offering, as a sacrifice for the congregation. For this purpose he was to put on, not the state-costume of the high priest, but a body-coat, drawers,…”