"Also they teach that men cannot be justified before God by their own strength, merits, or works, but are freely justified for Christ's sake, through faith, when they believe that they are received into favor, and that their sins are forgiven for Christ's sake, who, by His death, has made satisfaction for our sins. This faith God imputes for righteousness is His sight. Romans 3 and 4."
Augsburg Confession, IV. Justification. Concordia Triglotta, St. Louis: Concordia Publishing House, 1921, p. 45. Tappert, p. 30. Heiser, p. 12f. Romans 3; Romans 4.