The teaching office of the apostles’ successors does not
represent a second authority alongside Scripture but is inwardly a part of it.
This viva vox is not there to restrict the authority of Scripture or to limit
it or even replace it by the existence of another – on the contrary, it is its
task to ensure that Scripture is not disposable, cannot be manipulated, to
preserve its proper perspicuitas, its clear meaning, from the conflict of
hypotheses.
--Pope Benedict XVI, “The Holy Spirit as Communion”, Pilgrim Fellowship of Faith
