You Don't Know the Half of It

It is well-known that in his writings in table conversation [Martin] Luther would often refer to visits from the Devil, how the Devil would come to him and whisper in his ear, accusing him of all manner of filthy sin: "Martin, you are a liar, greedy, lecherous, a blasphemer, a hypocrite. You cannot stand before God." To which Luther would respond: "Well, yes, I am. And, indeed, Satan, you do not know the half of it. I have done much worse than that and if you care to give me your full list, I can no doubt add to it and help make it more complete. But you know what? My Saviour has died for all my sins - those you mention, those I could add and, indeed, those I have committed but am so wicked that I am unaware of having done so. It does not change the fact that Christ has died for all of them; his blood is sufficient; and on the Day of Judgment I shall be exonerated because he has taken all my sins on himself and clothed me in his own perfect righteousness." (From Carl Trueman in http://www.reformation21.org/counterpoints/wages-of-spin/thank-god-for-bandit-country.php)

via Jim Boling