Hebrews 5:3

and, on account of this infirmity, he ought, even as for the people, so also for himself, to offer for sins.

Hebrews 7:27

who has not day by day need, as the high priests, first to offer up sacrifices for his own sins, then for those of the people; for this he did once for all in having offered up himself.

Hebrews 9:7

but into the second, the high priest only, once a year, not without blood, which he offers for himself and for the errors of the people:

Leviticus 9:7

And Moses said unto Aaron, Go to the altar, and offer thy sin-offering, and thy burnt-offering, and make atonement for thyself, and for the people; and offer the offering of the people, and make atonement for them, as Jehovah has commanded.

Leviticus 16:6

And Aaron shall present the bullock of the sin-offering, which is for himself, and make atonement for himself, and for his house.

Exodus 29:12-19

and thou shalt take of the blood of the bullock, and put it on the horns of the altar with thy finger, and shalt pour all the blood at the bottom of the altar.

Leviticus 4:3-12

if the priest that is anointed sin according to the trespass of the people; then for his sin which he hath sinned shall he present a young bullock without blemish to Jehovah for a sin-offering.

Leviticus 8:14-21

And he brought near the bullock for the sin-offering; and Aaron and his sons laid their hands on the head of the bullock for the sin-offering;

Leviticus 16:15

And he shall slaughter the goat of the sin-offering, which is for the people, and bring its blood inside the veil, and do with its blood as he did with the blood of the bullock, and sprinkle it upon the mercy-seat, and before the mercy-seat;

Treasury of Scripture Knowledge

Summary

And by reason hereof he ought, as for the people, so also for himself, to offer for sins.

General references

Bible References

As

Hebrews 7:27
who has not day by day need, as the high priests, first to offer up sacrifices for his own sins, then for those of the people; for this he did once for all in having offered up himself.
Hebrews 9:7
but into the second, the high priest only, once a year, not without blood, which he offers for himself and for the errors of the people:
Exodus 29:12
and thou shalt take of the blood of the bullock, and put it on the horns of the altar with thy finger, and shalt pour all the blood at the bottom of the altar.
Leviticus 4:3
if the priest that is anointed sin according to the trespass of the people; then for his sin which he hath sinned shall he present a young bullock without blemish to Jehovah for a sin-offering.
Leviticus 8:14
And he brought near the bullock for the sin-offering; and Aaron and his sons laid their hands on the head of the bullock for the sin-offering;
Leviticus 9:7
And Moses said unto Aaron, Go to the altar, and offer thy sin-offering, and thy burnt-offering, and make atonement for thyself, and for the people; and offer the offering of the people, and make atonement for them, as Jehovah has commanded.
Leviticus 16:6
And Aaron shall present the bullock of the sin-offering, which is for himself, and make atonement for himself, and for his house.

General references

Leviticus 9:15
And he presented the people's offering, and took the goat of the sin-offering which was for the people and slaughtered it, and offered it for sin, as the first.