Being right doesn’t necessarily mean being infallible. From a confessional Lutheran perspective, the Augsburg Confession is right, but not inerrant, the writers correct, but not infallible.
Since SS is a practice of the Church, communions tend to use it in different ways, not unlike the differences between EO and CC.
SS is not a doctrine, but a practice.
Jon
But I am sure the main reason Lutherans regard the Confession as “right”, is because they regard it as a consistent, practical application of principles in Scripture. They see it fitting within the template. But the template
has to be infallibly composed. It is useless to regard the canon as a fallible collection of infallible books: that could mean the 27 books you trusted with your spiritual guidance, and for that matter books which mostly guided the Confessions, might not be the ones God inspired. It also means books most Christians never read, which would presumably contain crucial information, were inspired and ignored (!)
This is not reasonable. For Scripture to have any meaning for us today, there must have been a
visible, authoritative human agency - not “the Church” in general, but an identifiable entity within it, with divine guidance to publicly open the canon, declare a relatively few books inspired, and reject most potential scriptures as not inspired. The human entity must have had enormous credibility, as hundreds of scattered congregations, with a little grumbling, gradually put aside other, perhaps favorite scriptures as no longer scripture, and adopted this 27 book canon.
Other canons, supported by other Christian groups that did not accept the Magisterium, went on for awhile but faded away. We live in the world where the Magisterium-and-it’s-canon “won”. We live in a world where the ancient opponents of the Magisterium-and-its-canon were defeated.
My reading of Protestant scholars suggests they
now feel more the need to “defend the NT canon” without resort to the Magisterium; a few decades ago, they hardly ever mentioned the NT canon. (just an impression, I could well be wrong)