If we confess our sins, he is faithful and just to forgive us our sins and to cleanse us from all unrighteousness.

1 John 1:9 (ESV)

How many saints struggle to forgive themselves when the forgiveness of the Father is already upon them! The statement in 1 John 1:9 is airtight and sure. If this, then that. If you have come to to the precious Christ who not only knows your sin but even died for it, and if you make it known and proclaim it to him, then nothing else you could do has a bearing on your spiritual condition. The trustworthiness and the fairness of God takes over at this point. He is faithful and just.

He is faithful in that he can be trusted.  If the Lamb of God came to take away the sins of the world, then there is nothing more to atone for.  His blood is sufficient.  The promise of the propitiation of sins stands strong.  

He is just in that he is fair.  It would not be fair for Christ to die for an incomplete prize.  He did not come to wash away even nine tenths of our sin, but he came for the whole.  It would not be fair to Christ to give him any less that what he is fully due.   Rejoice, believer, for the promise of your forgiveness and your cleansing is sure.  

This has ramifications for your self-concept. Do you toil inwardly with regret? Can you not live within the status of one who has been cleansed and forgiven? Be just to yourself, as God has been just to you. Breathe in a deep and peaceful breath; you are cleansed and you are forgiven.