It is to be remarked that Aaron offers no peace-offering for himself. It was enough that he should participate in the peace-offerings of the consecration Leviticus 8:31, and in the two peace-offerings about to be sacrificed for the people.
His sin-offering was probably regarded not so much as a sacrifice for his own actual sins as a typical acknowledgment of his sinful nature and of his future duty to offer for his own sins and those of the People. See marginal references. “The law maketh men high priests which have infirmity; but the word of the oath, which was since the law, maketh the Son, who is consecrated (in the margin perfected, see Leviticus 8:22 note) forevermore, Hebrews 7:28.