Grace is the divine possibility for men which robs them, as men, of their own possibilities. Grace is the relating of the visible man to his invisible personality which is grounded in God. Grace is related to the visible man as death is to life. . . . We believe in our identity with the invisible new man who stands on the other side of the cross. . . . Faith is the possibility which belongs to men in God, in God himself, and only in God, when all human possibilities have been exhausted.
Karl Barth: Epistle to the Romans, vi. 8-11.