7 Then Moses said to Aaron, "Draw near to the altar and sacrifice your sin offering and your burnt offering, and make atonement for yourself and for the people; and sacrifice the offering of the people, and make atonement for them; as the Lord has commanded."
8 Aaron drew near to the altar, and slaughtered the calf of the sin offering, which was for himself. 9 The sons of Aaron presented the blood to him, and he dipped his finger in the blood and put it on the horns of the altar; and the rest of the blood he poured out at the base of the altar. 10 But the fat, the kidneys, and the appendage of the liver from the sin offering he turned into smoke on the altar, as the Lord commanded Moses; 11 and the flesh and the skin he burned with fire outside the camp.
Matthew Henry's Commentary on Leviticus 9:7-11
Commentary on Leviticus 9:1-21
(Read Leviticus 9:1-21)
These many sacrifices, which were all done away by the death of Christ, teach us that our best services need washing in his blood, and that the guilt of our best sacrifices needs to be done away by one more pure and more noble than they. Let us be thankful that we have such a High Priest. The priests had not a day's respite from service allowed. God's spiritual priests have constant work, which the duty of every day requires; they that would give up their account with joy, must redeem time. The glory of God appeared in the sight of the people, and owned what they had done. We are not now to expect such appearances, but God draws nigh to those who draw nigh to him, and the offerings of faith are acceptable to him; though the sacrifices being spiritual, the tokens of the acceptance are spiritual likewise. When Aaron had done all that was to be done about the sacrifices, he lifted up his hands towards the people, and blessed them. Aaron could but crave a blessing, God alone can command it.