Hebrews 7:27-28
Who hath no necessity daily, as the high priests, to offer up sacrifices, first for his own sins, and then for those of the people (for this He did once for all, when He offered up Himself);
Romans 8:3
For, what was impossible under law, wherein it was weak through the flesh. God, sending His Own Son in likeness of sinful flesh, and, respecting sin, condemned sin in the flesh;
2 Corinthians 5:21
Him Who knew no sin He made to be sin on our behalf, that we may become God's righteousness in Him.
Hebrews 5:3
and, on account of it, he ought, as for the people, so also for himself, to make offering for sins.