Hebrews 9:15-19

For this reason He is the mediator of a new covenant, so that, since a death has taken place for the redemption of the violations that were committed under the first covenant, those who have been called may receive the promise of the eternal inheritance.

For where there is a covenant, there must of necessity be the death of the one who made it.

For a covenant is valid only when people are dead, for it is never in force while the one who made it lives.

Therefore even the first covenant was not inaugurated 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,