I don't think that it's a terribly big jump to say that I had to deny Scripture's formal sufficiency, (Sola Scriptura) because if it were true, we would not see all these earnest Christians debating each other about what it says. I was ready to listen to an alternate accounting of the rule of faith, precisely because it would be unreasonable to believe my invocation of the Holy Spirit had been any more dispositive than the guy next to me, who would go to another church, profess other doctrines, all the while believing Sola Scriptura and inerrancy, et cetera. You can't hector the Catholic Church from "Scripture" without knowing, or at least asserting, that the interpretation you have is divine. But recall, even with the window-dressing of "derivative authority"--which is actually the mechanism which admits creeds, confessions, and the like--there is no mechanism within the system that makes the interpretation I hold more true than any other one. Yo...
A Christian blog, because: "For from him and through him and to him are all things. To him be the glory forever! Amen." (Romans 11:36)