Unheard of levels of peace would break out all over the place.

We could finally achieve a useful dialogue. Without religion interfering politics might evolve in to something for humanity as a whole to benefit from.

Satan and his hordes would overrun the earth. After I get raptured of course.

A lot of people wouldn't know what to do without someone telling them who to hate this week.

Nothing much to speak of. People would just find other justifications for killing each other, filling in the void.