I Dont Understand People

I don't understand why the religious seem to think you need religion to have morals or faith in a higher power. So long as a person believes in god and has a good moral standing then what does it matter if they a follow a religion or not? I thought part of religion was about having morals and faith in god, so if one already has those then what do they need religion for? Especially if the religion has some inconsistencies and self-contradictions with its moral ideologies...