Humans have begun to implant computing chips into the brains of regular citizens. This makes everyday computation, language, and learning extremely easy to acquire and perform. Of course, our spiritual and emotional sensibilities are a bit less open to direct advancement, although we are better able to understand complex philosophical pickles, and thus have become quite enamored with altruism and empathy.
This eventually makes the earth quite a nice place to be, for people are able to understand how to ameliorate the problems of disease, hunger, poverty, etc...It is a utopia of enlightenment, and we've really turned things around; not a moment too soon, by the way.
Although we've been fighting imminent death, and become quite adept at extending our lifetimes, we still die, albeit generally when we're damn well ready. As people begin to die, and go to Heaven, they find that it's not all that it cracked up to be. You see, upon entry into the afterlife, one leaves behind all silver and gold. In addition to this, they are unable to carry their computational upgrades through the pearly gates.
Everyone in Heaven is dumber than Hell, so to speak. They are able to, and do quite often, look down to earth with jealousy coursing through their veins in place of mortal blood. They tire of heaven quickly, finding themselves unable to eloquently express their feelings and ideas, which, naturally, have lost their edge as well. The begin to loathe God for his allowance of ignorance over the course of existence, but especially in this, the place of supposed perfection.
God writes a letter to Satan. It is terribly apologetic, and quite pitiful. God really needs some tips from Satan to keep the dummies content, fearing otherwise, he will be subject to mutiny.
This could be in the form of a series of letters, a telephone message, a text message, or an email. Possible title, "Dearest Doppleganger."
Possible Bible verse, "Do not lay up for yourselves treasures on earth, where moth and rust destroy and where thieves break in and steal; but lay up for yourselves treasures in heaven, where neither moth nor rust destroys and where thieves do not break in and steal. For where your treasure is, there your heart will be also."
"Then Jesus beholding him loved him, and said unto him, One thing thou lackest: go thy way, sell whatsoever thou hast, and give to the poor, and thou shalt have treasure in heaven: and come, take up the cross, and follow me."