Hebrews 9:13-14

9:13 For if the blood of goats and bulls and the ashes of a young cow sprinkled on those who are defiled consecrated them and provided ritual purity, 9:14 how much more will the blood of Christ, who through the eternal Spirit offered himself without blemish to God, purify our consciences from dead works to worship the living God.

Hebrews 9:22

9:22 Indeed according to the law almost everything was purified with blood, and without the shedding of blood there is no forgiveness.