A writer reports on the universe. When he presents his credentials, the gates of heaven and hell are equally opened to him. He can hear the devil’s defense and god’s accusations. The guards at the king’s heart let him in. The writer can be anything and any one he wants. When he writes he is a god, he creates.
Credentials are like potential energy, the compliments of a name on paper, in documents, word of mouth, but faith is like kinetic energy, the motion and the force that which is witnessed. Hence in the end it is the faith rather than the credentials that really takes you places.
In mathematics, in physics, people are concerned with what you say, not with your certification. But in order to speak about social reality, you must have the proper credentials, particularly if you depart from the accepted framework of thinking. Generally speaking, it seems fair to say that the richer the intellectual substance of a field, the less there is a concern for credentials, and the greater is concern for content.