Surely a man has come to himself only when he has found the best that is in him, and has satisfied his heart with the highest achievement he is fit for.
How could one comfort a disturbed person? He is already assailed with doubts about his faith. He would have to despair with such a doctrine. Rather one must seek to convince him that the Savior is there for him, has already forgiven him, and has already accepted him. As soon as one makes faith even in the least a requirement for justification, one takes from such a person all the comfort of the Gospel.