13-21. if the whole congregation of Israel sin through ignorance—In consequence of some culpable neglect or misapprehension of the law, the people might contract national guilt, and then national expiation was necessary. The same sacrifice was to be offered as in the former case, but with this difference in the ceremonial, that the elders or heads of the tribes, as representing the people and being the principal aggressors in misleading the congregation, laid their hands on the head of the victim. The priest then took the blood into the holy place, where, after dipping his finger in it seven times, he sprinkled the drops seven times before the veil. This done, he returned to the court of the priests, and ascending the altar, put some portion upon its horns; then he poured it out at the foot of the altar. The fat was the only part of the animal which was offered on the altar; for the carcass, with its appurtenances and offals, was carried without the camp, into the place where the ashes were deposited, and there consumed with fire.

     2. Speak unto Aaron thy brother, that he come not at all times into the holy place within the veil, &c.—Common priests went every day into the part of the sanctuary without the veil to burn incense on the golden altar. But none except the high priest was allowed to enter within the veil, and that only once a year with the greatest care and solemnity. This arrangement was evidently designed to inspire a reverence for the most holy place, and the precaution was necessary at a time when the presence of God was indicated by sensible symbols, the impression of which might have been diminished or lost by daily and familiar observation.

     11-19. Aaron shall bring the bullock of the sin offering which is for himself, &c.—The first part of the service was designed to solemnize his own mind, as well as the minds of the people, by offering the sacrifices for their sins. The sin offerings being slain had the sins of the offerer judicially transferred to them by the imputation of his hands on their head (Le 4:4, 15, 24, 29, 33); and thus the young bullock, which was to make atonement for himself and the other priests (called "his house," Ps 135:19), was killed by the hands of the high priest. While the blood of the victim was being received into a vessel, taking a censer of live coals in his right hand and a platter of sweet incense in his left, he, amid the solemn attention and the anxious prayers of the assembled multitude, crossed the porch and the holy place, opened the outer veil which led into the holy of holies and then the inner veil. Standing before the ark, he deposited the censer of coals on the floor, emptied the plate of incense into his hand, poured it on the burning coals; and the apartment was filled with fragrant smoke, intended, according to Jewish writers, to prevent any presumptuous gazer prying too curiously into the form of the mercy seat, which was the Lord's throne. The high priest having done this, perfumed the sanctuary, returned to the door, took the blood of the slain bullock, and, carrying it into the holy of holies, sprinkled it with his finger once upon the mercy seat "eastward"—that is, on the side next to himself; and seven times "before the mercy seat"—that is, on the front of the ark. Leaving the coals and the incense burning, he went out a second time, to sacrifice at the altar of burnt offering the goat which had been assigned as a sin offering for the people; and carrying its blood into the holy of holies, he made similar sprinklings as he had done before with the blood of the bullock. While the high priest was thus engaged in the most holy place, none of the ordinary priests were allowed to remain within the precincts of the tabernacle. The sanctuary or holy place and the altar of burnt offering were in like manner sprinkled seven times with the blood of the bullock and the goat. The object of this solemn ceremonial was to impress the minds of the Israelites with the conviction that the whole tabernacle was stained by the sins of a guilty people, that by their sins they had forfeited the privileges of the divine presence and worship, and that an atonement had to be made as the condition of God's remaining with them. The sins and shortcomings of the past year having polluted the sacred edifice, the expiation required to be annually renewed. The exclusion of the priests indicated their unworthiness and the impurities of their service. The mingled blood of the two victims being sprinkled on the horns of the altar indicated that the priests and the people equally needed an atonement for their sins. But the sanctuary being thus ceremonially purified, and the people of Israel reconciled by the blood of the consecrated victim, the Lord continued to dwell in the midst of them, and to honor them with His gracious presence.

     14. For—The sacrifice being "for ever" in its efficacy (Heb 10:12) needs no renewal.

     15. The Greek, has "moreover," or "now."

     18. where remission of these is—as there is under the Gospel covenant (Heb 10:17). "Here ends the finale (Heb 10:1-18) of the great tripartite arrangement (Heb 7:1-25; 7:26-9:12; 9:13-10:18) of the middle portion of the Epistle. Its great theme was Christ a High Priest for ever after the order of Melchisedec. What it is to be a high priest after the order of Melchisedec is set forth, Heb 7:1-25, as contrasted with the Aaronic order. That Christ, however, as High Priest, is Aaron's antitype in the true holy place, by virtue of His self-sacrifice here on earth, and Mediator of a better covenant, whose essential character the old only typified, we learn, Heb 7:26-9:12. And that Christ's self-sacrifice, offered through the Eternal Spirit, is of everlasting power, as contrasted with the unavailing cycle of legal offerings, is established in the third part, Heb 9:13-10:18; the first half of this last portion [Heb 9:13-28], showing that both our present possession of salvation, and our future completion of it, are as certain to us as that He is with God, ruling as a Priest and reigning as a King, once more to appear, no more as a bearer of our sins, but in glory as a Judge. The second half, Heb 10:1-18, reiterating the main position of the whole, the High Priesthood of Christ, grounded on His offering of Himself—its kingly character its eternal accomplishment of its end, confirmed by Psalms 40 and 110 and Jeremiah 31" [DELITZSCH in ALFORD].