Death, thou shalt die!

C.S. Lewis, The Screwtape Letters* (via The Inklings):

The first thing he did was to lower himself and be born as one of "them." We almost got him killed when he was a baby. But he eluded us then. He grew up to be a man. He taught those poor humans about himself, all the while not really spreading around who he was. Then one day he gave himself up to be killed by a bunch of jealous religious leaders. We figured it was a big bluff. Just an excuse to perform a public miracle and escape at the last minute. But he actually went through with it. He let them nail him to a cross and he died. We all thought, "Aha, you're beaten now! You've just made your big mistake!" 

All of us were feeling, for a few hours, a big relief from that constant fear we had always felt toward the Enemy. Maybe all those prophecies about our last judgement would never happen after all. Death had claimed the Creator of life. Finally our Lord Satan would be undisputed ruler of all. 

Then Sunday morning came. The Enemy reappeared. Suddenly, he was alive. Death could not hold him. But it was even worse than that. He had become an innocent sacrifice for the sins of all those humans. He had paid their penalty. He had died in their place. Now death could not hold them either. They could be forgiven and reunited with the Enemy. They can now live forever. For all practical purposes, death has died. There has never been a more disastrous day in the history of the universe.

That, my dear Wormwood, is the whole sad truth.

*The Screwtape Letters is a book by C.S. Lewis, published in 1942.  The story consists of a series of letters written by a senior demon, Screwtape, to his demon nephew Wormwood on how best to secure a man's damnation.  Notably, the senior demon prefers encouraging his targets to gradually slip into sin and perversity ("the safest path to hell is the gradual one.") rather than encouraging them to indulge in extravagant and more notable sins.