Leviticus 9:7
7 Then Moses said to Aaron, “Draw near to the altar and offer your sin offering and your burnt offering and make atonement jfor yourself and for the people, and bring the offering of the people and make atonement for them, as the Lord has commanded.”
Hebrews 5:3
3 Because of this he is obligated to offer sacrifice yfor his own sins just as he does for those of the people.
Hebrews 7:27
27 He has no need, like those high priests, to offer sacrifices daily, first afor his own sins and then for those of the people, since bhe did this conce for all when he offered up himself.
Hebrews 9:7
7 but into the second only the high priest goes, and he but ionce a year, and not without taking blood, which he offers jfor himself and for the unintentional sins of the people.