“Not only does this make theistic morality relativistic; it can make it immoral. Invisible gods can command people to slay heretics, infidels, and apostates. And an immaterial soul is unmoved by the earthly incentives that impel us to get along. Contestants over a material resource are usually better off if they split it than fight over it, particularly if they value their own lives on earth. But contestants over a sacred value (like holy land or affirmation of a belief) may not compromise, and if they think their souls are immortal, the loss of their body is no big deal—indeed, it may be a small price to pay for an eternal reward in paradise.”