If any man doesn't obey our word in this letter, note that man, that you have no company with him, to the end that he may be ashamed.

 But in spite of his love for and trust in men Paul was a realist. The faith, he said, is not for everyone. We can be certain that he said it not cynically but sorrowfully. Once again we see the tremendous responsibility of free-will. We can use it to open our hearts and we can use it to shut them. Faith's appeal is not selective, it goes out to every man; but the heart of man can refuse to respond. 