Please, I insist.
Because you say that something must be done to get it. Look, what you're saying is this: that if you do what you say is required, then by it you become saved and if you don't do it, then you won't be saved. Therefore, should you do it, you've saved yourself. Likewise, if you
don't do it, then you have condemned yourself. Any reasonable analysis of that leads to the unmistakable conclusion that
your salvation is up to you, and therefore you are your own saviour, not Christ.