Christianity has this two-pronged system to try to keep you within the fold. There is the reward of heaven but also the threat of hell if heaven is not sufficient. There is god as the good cop who cares about you and wants to save but also the devil as the bad cop who just wants the chance to fry you for eternity.
But according to a Gallup poll, Americans are ‘the glass is half full’ kind of people, believing slightly more in god than in the devil, and in heaven more than hell.

