What Makes a False Prophet?
A false prophet is not one who predicts false things, but one whose guiding principle is not the true, one who has an ear more to the world than to God, who fondles the spirit of the age whether it is embodied in the "princes", the "influential" or the "mass". He takes up the cause of generous ideas just when these are beginning to rot; he enters the field of action just at the moment when such engagement promises more advantages than dangers. He does not always do what is evil, but his activity is, at the very least, full of vanity. This often discourages the person who can glimpse the impending disaster from agreeing with him. And he always conspires against the true prophets.
from Paradoxes of Faith by Henri de Lubac p. 168