The case of the high priest. He is designated the priest that is anointed, in respect to which title, see notes on Leviticus 8:1-36. In case he sins in his representative character, his sin is such as to bring guilt on the people (this is the meaning of the words translated according to the sin of the people), and a special sin offering must therefore be made.
He is to take of the blood of the animal sacrificed, and bring it to the tabernacle of the congregation:… and sprinkle of the blood seven times before the Lord, before the vail of the sanctuary. And put some of the blood on the horns of the altar of sweet incense.
This was a more solemn method of presenting the blood to the Lord than that used in the burnt offering; the offering of the blood, which was the vehicle of life, being the chief feature in the sin offering, as the consumption of the whole animal by the altar fire was in the burnt offering.
In the burnt offerings and peace offerings the blood was thrown once on the altar of burnt sacrifice (see Leviticus 1:5); now it is sprinkled, in a smaller quantity each time, but as often as seven times (the number seven symbolically representing completeness), before the vail which shrouded the ark.
The altar of sweet incense is the golden altar, which stood within the tabernacle, in front of the vail. Perhaps the reason why the horns of the altar are specially appointed to have the blood placed on them is that they were regarded as the most sacred part of the altar, because they were its highest points, in which its elevation towards heaven culminated.
The remainder of the victim's blood is to be poured at the bottom of the altar of the burnt offering, in the court of the tabernacle, to sink into the ground, because no more of it was wanted for ceremonial use.
The internal fat is to be burnt upon the altar of the burnt offering, but not actually upon the smoldering burnt sacrifice, as in the case of the peace offerings; the sin offering preceding the burnt offering in order of time, while the peace offering followed it.
The remainder of the animal is to be carried without the camp … and be burnt, because its flesh was at once accursed and most holy. It was accursed, as having been symbolically the vehicle of the sins laid upon it by the offerer; therefore it must not be consumed upon the altar of God, but be destroyed with fire outside the camp, typifying the removal from God's kingdom, and the final destruction of all that is sinful.
But yet it was most holy, as its blood had been taken into the tabernacle, and had served as a propitiation; therefore, if it had to be burnt, it yet had to be burnt solemnly, reverently, and as a ceremonial act, in a place appointed for the purpose.
The writer of the Epistle to the Hebrews notices that one of the points in which our Lord was the antitype of the sin offering was that he "suffered without the gate," "that he might sanctify the people with his own blood" (Hebrews 13:12), which was thus indicated to have been carried within the sanctuary, that is, into heaven.