Lucifer's Hope the Guv

Unlike humans, Lucifer is ineligible for redemption and therefore doomed to eternal hell. Playing on God's sense of fairness, Lucifer appeals to the Archangel Michael for a chance to redeem himself by turning a person he corrupted into a paragon of virtue. Against his own wishes, Michael makes the deal. However, since moral perfection is impossible for anyone, he decrees that Lucifer must attain redemption by seeing that his subject does not break nine of the Ten Commandments