TSK · Leviticus 9:7

For the Priest“‘If the high priest sins so that the people are guilty, on account of the sin he has committed he must present a flawless young bull to the LORD for a sin offering.

What has been done on this day the LORD has commanded to be done to make atonement for you.

Then Aaron is to present the sin offering bull which is for himself and is to make atonement on behalf of himself and his household.

Then he must bathe his body in water in a holy place, put on his clothes, and go out and make his burnt offering and the people’s burnt offering. So he is to make atonement on behalf of himself and the people.

For every high priest is taken from among the people and appointed to represent them before God, to offer both gifts and sacrifices for sins.

He has no need to do every day what those priests do, to offer sacrifices first for their own sins and then for the sins of the people, since he did this in offering himself once for all.