Barth: CD I/2 §16.2
To have our master unavoidably in Jesus Christ is to be subjected to a definite formation and direction. We can adapt ourselves to other masters. We can imitate them. We can model ourselves after them, or even on the caricature of them. No other master has the power to subordinate another man to his direction and leadership in such a way that the latter is completely himself and not a cast, and yet completely represents the form and the way of the master and not a caricature... The formation and direction of a man by the Word of God, which becomes a reality with the outpouring of the Holy Spirit, has nothing to do with imitation. We must again insist that under this formation and direction, man remains the man he is. His own nature and thinking and willing and feeling, both in general and in detail, is not lost. But in the light of this his own being, he remains a sinner before God. Yet this very being of his as a sinner before God is subjected to the Word of God, and is therefore formed and directed by that Word. And because the subordination and therefore the formation and direction are perfect, there takes place at this point what imitation intends but can never achieve: the master acquires a pupil, a servant, a scholar, a follower, in whom he finds himself again, and in whom, accordingly he, the master, can also be found again by others.
How perfectly put, how beautifully understood!