2 Corinthians 5:21
He has made Him who knew nothing of sin to be sin for us, in order that in Him we may become the righteousness of God.
Hebrews 5:3
And for this reason he is required to offer sin-offerings not only for the people but also for himself.
Hebrews 7:27
who, unlike other High Priests, is not under the necessity of offering up sacrifices day after day, first for His own sins, and afterwards for those of the people; for this latter thing He did once for all when He offered up Himself.
Hebrews 10:10-14
It is through that divine will that we have been set free from sin, through the offering of Jesus Christ as our sacrifice once for all.