Hebrews 9:15-18

15And so he is the mediator of a new covenant, so that those who are called may receive the eternal inheritance he has promised, since he died to set them free from the violations committed under the first covenant.

16For where there is a will, the death of the one who made it must be proven.

17For a will takes effect only at death, since it carries no force while the one who made it is alive.

18So even the first covenant was inaugurated with blood.