Hebrews 5:3

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

Hebrews 7:27

Who needs not daily, as those high priests, to offer up sacrifice, first for his own sins, and then for the people's: for this he did once, when he offered up himself.

Hebrews 9:7

But into the second went the high priest alone once every year, not without blood, which he offered for himself, and for the errors of the people:

Leviticus 9:7

And Moses said unto Aaron, Go unto the altar, and offer your sin offering, and your burnt offering, and make an atonement for yourself, and for the people: and offer the offering of the people, and make an atonement for them; as the LORD commanded.

Leviticus 16:6

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

Exodus 29:12-19

And you shall take of the blood of the bullock, and put it upon the horns of the altar with your finger, and pour all the blood beside the bottom of the altar.

Leviticus 4:3-12

If the priest that is anointed sins according to the sin of the people; then let him bring for his sin, which he has sinned, a young bullock without blemish unto the LORD for a sin offering.

Leviticus 8:14-21

And he brought the bullock for the sin offering: and Aaron and his sons laid their hands upon the head of the bullock for the sin offering.

Leviticus 16:15

Then shall he kill the goat of the sin offering, that is for the people, and bring his blood within the veil, and do with that 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 needs not daily, as those high priests, to offer up sacrifice, first for his own sins, and then for the people's: for this he did once, when he offered up himself.
Hebrews 9:7
But into the second went the high priest alone once every year, not without blood, which he offered for himself, and for the errors of the people:
Exodus 29:12
And you shall take of the blood of the bullock, and put it upon the horns of the altar with your finger, and pour all the blood beside the bottom of the altar.
Leviticus 4:3
If the priest that is anointed sins according to the sin of the people; then let him bring for his sin, which he has sinned, a young bullock without blemish unto the LORD for a sin offering.
Leviticus 8:14
And he brought the bullock for the sin offering: and Aaron and his sons laid their hands upon the head of the bullock for the sin offering.
Leviticus 9:7
And Moses said unto Aaron, Go unto the altar, and offer your sin offering, and your burnt offering, and make an atonement for yourself, and for the people: and offer the offering of the people, and make an atonement for them; as the LORD commanded.
Leviticus 16:6
And Aaron shall offer his bullock of the sin offering, which is for himself, and make an atonement for himself, and for his house.

General references

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