And 2Peter 3:16 emphatically states that sola scriptura is destructive.
“...regard the patience of our Lord as salvation; just as also our beloved brother Paul, according to the wisdom given him, wrote to you,
16as also in all his letters, speaking in them of these things, in which are some things hard to understand, which the untaught and unstable distort, as they do also the rest of the Scriptures, to their own destruction.”
As Luther noted, Scripture is excellent, but evil men can turn anything to evil use.
What in that passage suggests scripture is not authoritative? If men can twist the God-breathed words of Scripture to evil end, how much more traditions?
Jesus, Paul & Peter all used Scripture as authoritative. We are regularly admonished to study it with diligence...the same epistle says, “to which you do well to pay attention as to a lamp shining in a dark place, until the day dawns and the morning star arises in your hearts”.
A lamp in a dark place reveals, it doesn’t conceal. It makes sight possible. Yet you would have 2 Peter teach us not to trust scripture?