1 Peter 2:9-12 - So, if you're saved by grace through faith, what's the deal with good deeds? If you don't HAVE to do them, why do them? When you think of it this way, Christianity becomes a duty, just a set of rules. The thing is, that's not what Christianity is about. It's about a new life, a life lived NOT for yourself, a life lived as a response to being saved, not in order to be saved.