So many of us struggle with sin. We name the name of Christ, we come to Him in humble repentance, and sometimes we soar on the knowledge and hope of God. But then, unfortunately, there's a private struggle too. It's there. We fight against the old nature. We fight to put to "death the deeds of the flesh" that keep bubbling up. What's going on? Does this mean we aren't really saved? No! This is the subject of Romans 6 and 7. The struggle against sin and our misunderstanding of it causes loads of worry and unnecessary anxiety in the Christian life.
The truth is that we're saved by faith alone. No amount of works, nor adherence to the law, or any other code will justify us before God. But with this knowledge, in loving faith, in gratitude, our lives our renewed and we'll inevitably encounter struggles with our old nature. It's a given. If it happened to Paul, it will happen to us. This shouldn't cause us despair but more and more reliance upon grace in order to defeat the old sin-nature within us. The law is powerless to defeat sin. Only grace and faith can do that. So, don't despair in your fight. Getting hit doesn't mean you aren't really saved. It simply means that you're in the ring. Christ has and will continue to deliver you from this body of death!
This is what it means to be more than a conqueror in Him who loves us.