Leviticus 16:24
24 And he shall bathe his body in water in a holy place and put on his garments and come out and offer his burnt offering and the burnt offering of the people and make atonement pfor himself and for the people.
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.