One thing a lot of people don't seem to understand is that you need Jesus' grace on an ongoing basis if you are going to live by the new, stricter covenant.
Someone who's done something like kick a porn habit or one of the nastier, more pernicious sins like pride will understand this. Things that are habitual or compulsively disordered sins are better identified and conquered with the help of grace. You are unlikely to get this grace if you don't at least go to church.
