If the scriptures were perfect and self authenticating, we wouldn't need the witness of the Holy Spirit.
But doesn't the Spirit illuminate us to see the Truth in the Scriptures? I see it as our needing Him to ultimately reveal to us what we are reading. And this can be that the Scriptures do things we cannot see apart from Him.
Some personal experience (authority or no?) if I may: Through the years spent sitting under teaching, there has always been that small voice inside me saying when something doesn't make sense. Yes, at times it was me not liking something being taught that was against something I liked at the time. Part of the struggle in growth has been determining the difference.
The many checks in my spirit along the way have played out over the years of focused studies to have been proven correct in ways I can now see and understand.
There is a process and a timing in not only our personal lives, but in all of human history. Things are revealed in both as He determines.
I agree with those that have pointed out the "biblical authority" that leads to denominational differences is ultimately a matter of interpretation. In other words, it's a matter of human error, which is to be expected. What follows from that? Any claim that my interpretation is correct and another's incorrect is ultimately an appeal to human authority. Of course, that's not the conclusion anyone wants. Each wants to say theirs is correct.
Good points. But what if one does have the correct interpretation? Is that then a claim to personal authority or to the Authority? The issue is how are we to know the difference?
You can trust the scriptures, not because they are perfect or inerrant, but because they bear witness to the Living Truth.
If they bear witness to the Living Truth & are not perfect or inerrant, then how can they be trusted? How are we able to say they are not perfect or inerrant? Do we have that ability and capacity?
There was a teaching I heard decades ago saying the ancient Rabbis believed the design of the universe is in the Torah. Some of their observations from Scripture re: things like the existence of [something like] 10 dimensions are fascinating to see how they derived such things. Who among us can say any of these things are not correct? If the Spirit was to open the Word to us completely, what would we see that we had had in our hands the whole time?
As seemingly mystical as His Spirit can be, cannot His written word be just as vast as the Word who inspired it? I trust Him, so I trust His Word and His Spirit who illuminates me to what He means in what He's said.
So where is the authority in this situation? Both camps claim to have arrived at their conclusions from the authority of the Bible. What can we conclude about that?
1) One group is wrong and the other is right?
2) Both groups are wrong?
3) Both groups are right?
In any given matter it seems one would have to be applicable. Many times the old commercial for Certs or something rings in my ears re: theological conclusions - the ringing being, Stop! You're both right! Once the argument becomes imbedded as a right vs. wrong, neither can see the light the other has. Sometimes the right vs. wrong is right. Many times it is not.
There's a specific grammatical structure in Greek for "on the one hand _____ and on the other hand ______." I don't think we use such thinking enough. The NT uses it frequently. There's a dimensional reasoning that escapes us.