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

“Then I said, ‘Here I am: I have come – it is written of me in the scroll of the book – to do your will, O God.’”

then he says, “Here I am: I have come to do your will.” He does away with the first to establish the second.

Then his voice shook the earth, but now he has promised, “I will once more shake not only the earth but heaven too.”