It has been clear to me for some time that all evil that man and demon perpetrate is turned to some greater good by God. He excels at that. We do not always see it, but when I do, I am always amazed.
Ran across this quote:
… so also has the Devil, the father of death, been put to rout through the death of Christ. He finds that the very same weapon he used to wield as the ready tool of his deceit has now become the mighty instrument of his own destruction.
I think this is a key component of why Jesus points out that it is necessary that salvation had to come through death.