“The troubled conscience...”
The troubled conscience, in view of God's judgment, has no remedy against desperation and eternal death, unless it takes hold of the forgiveness of sins by grace, freely offered in Christ Jesus, which if it can apprehend, it may then be at rest. Then it can boldly say: I seek not active or working righteousness, for if I had it, I could not trust it, neither dare I set it against the judgment of God. Then I abandon myself from all active righteousness, both of my own and of God's law, and embrace only that passive righteousness, which is the righteousness of grace, mercy, and forgiveness of sins. I rest only upon that righteousness, which is the righteousness of Christ and of the Holy Ghost.
— Martin Luther, “Declaration” in his Commentary on Galatians
It doesn't get any better than this, does it?