The Comprehensive Soteriology of the Reformers – Reflections on “Justification” and “Sanctification” in the Reformation
The main difference from medieval soteriology is that Luther does not believe in the infusion of grace into the soul of man, by which he is progressively made righteous before finally being justified. Luther believes that by faith, God unites the soul of man with Christ and instills the external righteousness of Christ directly into a man’s life so that he becomes righteous. But Luther does not believe that this alien righteousness of Christ is instilled into man all at once. Rather, it is progressive in nature, continuing throughout a man’s entire life.