Hebrews 5:3

and because of this [human weakness] he is required to offer sacrifices for sins, for himself as well as for the people.

Hebrews 7:27

who has no day by day need, like those high priests, to offer sacrifices, first of all for his own [personal] sins and then for those of the people, because He [met all the requirements and] did this once for all when He offered up Himself [as a willing sacrifice].

Hebrews 9:7

but into the second [inner tabernacle, the Holy of Holies], only the high priest enters [and then only] once a year, and never without [bringing a sacrifice of] blood, which he offers [as a substitutionary atonement] for himself and for the sins of the people committed in ignorance.

Leviticus 9:7

Moses said to Aaron, “Approach the altar and present your sin offering and your burnt offering and make atonement for yourself and for the people; and present the offering of the people and make atonement for them, just as the Lord has commanded.”

Leviticus 16:6

Then Aaron shall present the bull as the sin offering for himself, and make atonement for himself and for his house.

Exodus 29:12-19

And you shall take some of the blood of the bull and with your finger put it on the horns of the altar [of burnt offering], and you shall pour out the remainder of the blood at the base of the altar.

Leviticus 4:3-12

if the anointed priest sins, bringing guilt on the people, then he shall offer to the Lord a young bull without blemish as a sin offering for the sin he has committed.

Leviticus 8:14-21

Then he brought the bull for the sin offering, and Aaron and his sons laid their hands on the head of the bull.

Leviticus 16:15

“Then he shall kill the goat of the sin offering that is for [the sins of] the people and bring its blood within the veil [into the Most Holy Place] and do with its blood as he did with the blood of the bull, and sprinkle it on the mercy seat and in front of 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 no day by day need, like those high priests, to offer sacrifices, first of all for his own [personal] sins and then for those of the people, because He [met all the requirements and] did this once for all when He offered up Himself [as a willing sacrifice].
Hebrews 9:7
but into the second [inner tabernacle, the Holy of Holies], only the high priest enters [and then only] once a year, and never without [bringing a sacrifice of] blood, which he offers [as a substitutionary atonement] for himself and for the sins of the people committed in ignorance.
Exodus 29:12
And you shall take some of the blood of the bull and with your finger put it on the horns of the altar [of burnt offering], and you shall pour out the remainder of the blood at the base of the altar.
Leviticus 4:3
if the anointed priest sins, bringing guilt on the people, then he shall offer to the Lord a young bull without blemish as a sin offering for the sin he has committed.
Leviticus 8:14
Then he brought the bull for the sin offering, and Aaron and his sons laid their hands on the head of the bull.
Leviticus 9:7
Moses said to Aaron, “Approach the altar and present your sin offering and your burnt offering and make atonement for yourself and for the people; and present the offering of the people and make atonement for them, just as the Lord has commanded.”
Leviticus 16:6
Then Aaron shall present the bull as the sin offering for himself, and make atonement for himself and for his house.

General references

Leviticus 9:15
Then Aaron presented the people’s offering. He took the goat for the sin offering of the people, and killed it and offered it for sin, as he did the first.