When the devil throws our sins up to us and declares that we deserve death and hell, we ought to speak thus: “I admit that I deserve death and hell. What of it? Does this mean that I shall be sentenced to eternal damnation? By no means. For I know One who suffered and made satisfaction in my behalf. His name is Jesus Christ, the Son of God. Where he is, there I shall be also.”
“To Jerome Weller, July 1530,” in Luther: Letters of Spiritual Counsel (Vancouver: Regent College, 2003), 86-87.