Is the hierarchy perhaps free to teach what they find most to their
liking on matters of religion, or what they expect will be most pleasing
to the proponents of certain current views opposed to all doctrine?
Certainly not! The prime duty of the episcopate is to transmit strictly
and faithfully the original message of Christ, the sum total of the
truths which He revealed and confided to the Apostles as necessary for
salvation.
--Pope Paul VI
Taken from The Catholic Breadbox