Hebrews 9:17

how much more will the blood of Christ, who through the eternal Spirit offered himself without defect to God, cleanse your conscience from dead works to serve the living God?

For this reason he is the mediator of a new covenant, since a death has occurred for the redemption of the transgressions that were under the first covenant, that those who have been called may receive the promise of the eternal inheritance.

For where a last will and testament is, there must of necessity be the death of him who made it.

Therefore even the first covenant has not been dedicated without blood.

For when every commandment had been spoken by Moses to all the people according to the law, he took the blood of the calves and the goats, with water and scarlet wool and hyssop, and sprinkled both the book itself and all the people,

saying, “This is the blood of the covenant which God has commanded you.”