NOT THE sword of ASSKICKING!!! ;(
Yeah, that would be cool, it could be like an in-game church, you could even sacrifice things(depending on your religion, like food, or weapons, or armor) to your gods, to get a temp. power/skill boost in that area. And some gods can even hate other gods, so a favour to one would mean hate from te other. The possibilities are endless, you can even do quest from your god, now that i think about it...