Not one of the orthodox ministers dare preach what he thinks if he knows a majority of his congregation think otherwise. He knows that every member of his church stands guard over his brain with a creed, like a club, in his hand. He knows that he is not expected to search after the truth, but that he is employed to defend the creed. Every pulpit is a pillory, in which stands a hired culprit, defending the justice of his own imprisonment.
There exists indeed an opposition to it [building of UVA, Jefferson's secular college] by the friends of William and Mary, which is not strong. The most restive is that of the priests of the different religious sects, who dread the advance of science as witches do the approach of day-light; and scowl on it the fatal harbinger announcing the subversion of the duperies on which they live. In this the Presbyterian clergy take the lead. The tocsin is sounded in all their pulpits, and the first alarm denounced is against the particular creed of Doctr. Cooper; and as impudently denounced as if they really knew what it is. [Letter to José Francesco Corrê a Da Serra - Monticello, April 11, 1820]
Politics and the pulpit are terms that have little agreement.
When it's foggy in the pulpit it's cloudy in the pew.