Hebrews 9:17

because a will does not take effect until the one who made it has died; it cannot be executed while he is still alive.

For a testament is of force after men are dead: otherwise it is of no strength at all while the testator liveth.

For a will is in force where there has been death, for it is never in force while he who made it lives.

For a testament is of force where there hath been death: for it doth never avail while he that made it liveth.