My dear children, I am writing this to you so that you will not sin. But if anyone does sin, we have an advocate who pleads our case before the Father. He is Jesus Christ, the one who is truly righteous. He himself is the sacrifice that atones for our sins--and not only our sins but the sins of all the world.
We must try not to sin but if we do sin there is still hope.
Jesus Christ is able to speak to the Father in our defence.
He took on himself the punishment for our sin so he can give us forgiveness.