From the Diet of Worms to the Augsburg Confession - James Aitken Wylie

Duke of Bavaria, addressing Eck, "can you confute
that paper out of the Bible?" "No," replied he, "but
it may be easily done from the Fathers and
Councils." "I understand," rejoined the duke, "I
understand; the Lutherans are in Scripture, and we
are outside." The worthy Chancellor of Ingolstadt
was of the same opinion with another of his coreligionists,
that nothing is to be made of
Protestants so long as they remain within the castle
of the Bible; but bring them from their stronghold
down into the level plain of tradition, and nothing
is easier than to conquer them.
The clear eye of Luther saw what was coming.
He knew that it was not in Dr. Eck, and the whole
cohort of his coadjutors to boot, to refute the
Confession of Melanchthon, and that there wasbut
one alternative, namely, that the strong sword of
Charles should come in to repress what logic could
not confute. "You are waiting for your adversaries'
answer," wrote he to his friends at Augsburg; "it is
already written, and here it is: The Fathers, the
Fathers, the Fathers; the Church, the Church, the
Church; usage, custom; but of the Scriptures–
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