Again, in terms of a church’s principles or theology and doctrine, Scripture, by itself, has no authority - it’s words on a page as until someone reads them and interprets them and develops doctrine.
About 500 years ago, some took Scriptures (or most of them) left the Church and created a new authority or authorities: In your case it is your church leaders and membership.
Catholics don't believe the Scriptures are God's Word? After 'giving' the Bible to the world, after John 1:1? I am shocked, and would post the pic of Claude Raines if I had it. Well, that makes perfect sense, now. Why bother to keep them, or write them down at all if the Word of God had no authority unless it was given it by a man? THAT does explain Catholic doctrine now. I'd like to repost this answer in the other thread, if you don't mind, the one about crossing the Tiber where this conversation originated.