Carl Friedrich Keil and Franz Delitzsch Old Testament Commentary
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, girdle, and head-dress of white cloth (bad: see Exo 28:42), having first bathed his body, and not merely his hands and feet, as he did for the ordinary service, to appear before Jehovah as entirely cleansed from the defilement of sin (see at Lev 8:6) and arrayed in clothes of holiness. The dress of white cloth was not the plain official dress of the ordinary priests, for the girdle of that dress was coloured (see at Exo 28:39-40); and in that case the high priest would not have appeared in the perfect purity of his divinely appointed office as chief of the priesthood, but simply as the priest appointed for this day (v. Hoffmann). Nor did he officiate (as many of the Rabbins, and also C. a Lapide, Grotius, Rosenmller, and Knobel suppose) as a penitent praying humbly for the forgiveness of sin. For where in all the world have clear white clothes been worn either in mourning or as a penitential garment? The emphatic expression, "these are holy garments," is a sufficient proof that the pure white colour of all the clothes, even of the girdle, was intended as a representation of holiness. Although in Exo 28:2, Exo 28:4, etc., the official dress not only of Aaron, but of his sons also, that is to say, the priestly costume generally, is described as "holy garments," yet in the present chapter the word kodesh, "holy," is frequently used in an emphatic sense (for example, in Lev 16:2, Lev 16:3, Lev 16:16, of the most holy place of the dwelling), and by this predicate the dress is characterized as most holy. Moreover, it was in baddim ("linen") that the angel of Jehovah was clothed (Eze 9:2-3, Eze 9:11; Eze 10:2, Eze 10:6-7, and Dan 10:5; Dan 12:6-7), whose whole appearance, as described in Dan 10:6, resembled the appearance of the glory of Jehovah, which Ezekiel saw in the vision of the four cherubim (ch. 1), and was almost exactly like the glory of Jesus Christ, which John saw in the Revelation (Rev 1:13-15). The white material, therefore, of the dress which Aaron wore, when performing the highest act of expiation under the Old Testament, was a symbolical shadowing forth of the holiness and glory of the one perfect Mediator between God and man, who, being the radiation of the glory of God and the image of His nature, effected by Himself the perfect cleansing away of our sin, and who, as the true High Priest, being holy, innocent, unspotted, and separate from sinners, entered once by His own blood into the holy place not made with hands, namely, into heaven itself, to appear before the face of God for us, and obtain everlasting redemption (Heb 1:3; Heb 7:26; Heb 9:12, Heb 9:24).
Jamieson-Fausset-Brown Bible Commentary
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 suppliant. That plain dress was more in harmony with a season of humiliation (as well as lighter and more convenient for the duties which on that occasion he had singly to perform) than the gorgeous robes of the pontificate. It showed that when all appeared as sinners, the highest and lowest were then on a level, and that there is no distinction of persons with God [Act 10:34].
John Gill Bible Commentary
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 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 into the holy place, only that he should first give of his own a bullock for a sin offering, to atone for himself, and for the priests; nor could it be the body of the bullock he brought, only the blood of it into the most holy place, where he entered not without blood, first with the blood of the bullock, and then with the blood of the goat; for the body of the bullock for a sin offering was burnt without the camp, and the body of the ram for the burnt offering was burnt upon the altar of burnt offering; see Heb 9:7.