You have cast all my sins behind Your back. 

Who is a God like You, pardoning iniquity and passing over the transgression of the remnant of His heritage? He does not retain His anger forever, because He delights in mercy. He will again have compassion on us, and will subdue our iniquities. You will cast all our sins into the depths of the sea.“For a mere moment I have forsaken you, but with great mercies I will gather you. With a little wrath I hid My face from you for a moment; but with everlasting kindness I will have mercy on you,” says the Lord, your Redeemer. § I will forgive their iniquity, and their sin I will remember no more.Blessed is he whose transgression is forgiven, whose sin is covered. Blessed is the man to whom the Lord does not impute iniquity, and in whose spirit there is no deceit. § The blood of Jesus Christ His Son cleanses us from all sin.