Hebrews 9 - ESV

How much more will the blood of Christ, who through the eternal Spirit offered himself without blemish to God, purify our conscience from dead works to serve the living God.
Hebrews 9:14 Jesus Spirit purification
Therefore he is the mediator of a new covenant, so that those who are called may receive the promised eternal inheritance, since a death has occurred that redeems them from the transgressions committed under the first covenant.
Hebrews 9:15 law Savior mediator

Indeed, under the law almost everything is purified with blood, and without the shedding of blood there is no forgiveness of sins.
Hebrews 9:22 law blood forgiveness
So Christ, having been offered once to bear the sins of many, will appear a second time, not to deal with sin but to save those who are eagerly waiting for him.
Hebrews 9:28 sin sacrifice salvation