This morning I want to share a couple of thoughts from Martin Luther on Psalm 32. You might read the psalm before going forward with the post but it's up to you:-).
The 32nd Psalm is an exemplary psalm of instruction that teaches us what sin is, and how one might be freed from it and be righteous before God. Our reason does not know what sin is and tries to make satisfaction for it with works. but the psalmist says that even saints are sinners. They cannot become holy or blessed except by confessing themselves as sinners before God, knowing that they are regarded as righteous only from the grace of God, apart from any service or work.
In short, our righteousness is called (in plain language) the forgiveness of our sins. Or, as it says here: "sins not counted," "sins covered," "sins not to be seen." Here stand the clear plain words: All the saints are sinners and remain sinners. But they are holy because god in His grace neither sees nor counts these sins, but forgets, forgives and covers them. There is thus no distinction between the saints and the non-saints. They are sinners alike and all sin daily, only that the sins of the holy are not counted but covered; and the sins of the unholy are not covered but counted.
Martin Luther, "Reading the Psalms with Luther," CPH 2007