Hebrews 7:27-28

who hath no need, as the Levitical high-priests had, daily to offer sacrifices first for his own sins, and then for those of the people: for this He did once for all, in offering up Himself.

Romans 8:3

For that which was impossible for the law to do, and in which it was weak through the corruption of the flesh, God by sending his own Son in the likeness of sinful flesh to be a sacrifice for sin, hath done; that is, hath condemned sin in the flesh:

2 Corinthians 5:21

For He hath made Him, who knew no sin, to be a sin-offering for us, that in Him we might be made righteous before God.

Hebrews 5:3

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

Treasury of Scripture Knowledge

Summary

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

Bible References

For a sin

Romans 8:3
For that which was impossible for the law to do, and in which it was weak through the corruption of the flesh, God by sending his own Son in the likeness of sinful flesh to be a sacrifice for sin, hath done; that is, hath condemned sin in the flesh:
2 Corinthians 5:21
For He hath made Him, who knew no sin, to be a sin-offering for us, that in Him we might be made righteous before God.
Hebrews 5:3
and for this reason he ought, as for the people, so also for himself, to offer sacrifice for sins.
Hebrews 7:27
who hath no need, as the Levitical high-priests had, daily to offer sacrifices first for his own sins, and then for those of the people: for this He did once for all, in offering up Himself.