I would question whether or not you believe that the Holy Spirit is still the teacher. For scripture still is in authority over the church and it is not the church that is in authority over the scripture.

For what is written is inspired of God and not man. Therefore it is also the Holy Spirit that is the teacher and not man. Therefore the ECF are not the provider of the Holy Spirit but God is and the ECF are not the provider of scripture God is.. So now the concern is who will we listen to. Man or God.
Yes, I still believe the Holy Spirit is the teacher, but this is besides the point. The Holy Spirit is the teacher, but he use the Church. May I ask why is your [and your church] interpretation of Scriptures the correct one? The slogan that goes "I am lead by the Spirit to the truth and thus I do not need men" does not cut it since over 30,000 different Protestant Churches are saying that, and all of them can't be right! You can speak to a Pentecostal or a Baptize or a "non-denominational" and they will all say there have the truth because the Holy Spirit is inside them. Hum...Is God the author of confusion? The fact is the God-bearing Fathers were part of the Early Church, and what they have to say are more important than what "Billy Graham" have to say 2,000 years later. These Church Fathers told us, under the guidance of the Holy Spirit, which books belong in the OT and NT [76 books] .
It was the Church that had the ultimate authority in this matter, thanks to God guiding His Holy Church. There is no reference to a belief in a particular
canon of Scripture, or in the Scriptures themselves, but in the
Church. Why will God guide them to the correct canon, and not guide them to the correct interpretations? Are you and your 21st Century Pastor the correct interpreter of Scriptures? If the Holy Spirit is the one who teach the Church the truth [and it is He who provide us with the correct interpretation of Scriptures], where is he is now? Is he in the Baptize church? The Pentecostal Church? A "non-denominational" [oxymoron] Church? The Mormons? The Seventh Day Adventist? The List can go on..... The Eastern Orthodox Church has taught the same doctrines preached by Christ, the Holy Apostles, there Holy Successors, the God-bearing Fathers, and the Seven Ecumenical Councils, neither subtracting from the faith nor adding to it. She has Apostolic Succession. The point I am trying to make is that in the Early Days the Church was under One Faith, One Spirit, One Baptism, and visible. From the Early 2nd Century [most likely before] she calls herself "The Catholic Church", later the "One, Holy, Catholic and Apostolic Church". I am part of this Church started by Christ. She defended agaisnt heretics. Every time one open the Holy Bible, one follow a canon [at least in the NT for Protestants] put together by the Church, so how can one claim the Holy Bible is the ultimate authority? It was not the ultimate authority back then.
I say that if the Church was the ultimate authority back then in determining which books belong "where", under the guidance of the Holy Spirit, then she is the ultimate authority in telling us the correct interpretation and which doctrines is "true or false" based upon on Holy Tradition.
I am truly sad that it in 1054AD, the West and East Separated from each other, but either the West [The Roman Catholic Church] or the East [The Eastern Orthodox Church] today has the truth. There are only 2 options today because Protestantism is only 500 years old
The Fact is that only the Church [The One, Holy, Catholic and Apostolic Church confess in the Nicene Creed] [2 Timothy 3:15] have the ultimate truth. Sacred Scriptures [a product of the Church] is part of Holy Tradition. The ultimate Authority is the Church, not the Holy Bible. If Scriptures are correct then there is a Church today who teach the fullness of the Truth and have Apostolic Succession [hint: The Eastern Orthodox Church]. The doctrine of "Sola-Scriptural" was invented by Martin Luther 500 years ago and was never part of the faith of the Early Church. If a doctrine or interpretation of Scriptures was not part of the witness of the Early Church [1st-8th Century] it is a false doctrine. That is why Protestantism [also "non-denominational"] are so corrupt. They follow doctrines and interpretation unheard of in the Early Church, even those who were disciples of the Holy Apostles. The reason why we have 30,000 different Protestant Churches is because of this man-made doctrine.
One can say "The Holy Bible is the ultimate authority" but what defines the truth is there own interpretation of Scriptures not the Holy Scriptures themselves.
We need the guidance of those who were part of the Early Church. The Church defended Herself against heretical teachings by appealing to two key things: the apostolic origins of Holy Tradition, as proved by Apostolic Succession, and by appealing to the universality of the Orthodox Faith [even Renowned Protestant Historian admit this in his book "Early Christian Doctrines" pg 35; 37 etc]. Remember, before any NT writings were ever written, there was the Holy Church! Yes, after reading Scriptures and the God-Bearing Fathers, it is the Holy Spirit who guided His Church agaisnt the many early heretics, and the Holy Spirit still do. I listen to God and what he spoke through His Church, not merely on Sacred Scriptures alone. I am not saying Holy Scriptures have "limited authority" but it is Holy Traditions [which included written and unwritten: 2 Thes 2:15] that defines the truth. The Holy Spirit was sent down on the Apostles on Pentecost, and they were given the charisma to serve and lead the Church. This charisma they passed on to their successors, the Bishops, who in turn passed it on to their own successors, even to this present day [2 Tim 2:2). The Apostles and the Bibles lead the Church decades before any NT Scriptures written down, and more decades before the Church could agree on what belong in "The Holy Bible".
Sorry for the long post
Blessings,
Ramon
P.S:
"It is possible, then, for everyone in every church, who may wish to know the truth, to contemplate the tradition of the apostles which has been made known to us throughout the whole world. And we are in a position to enumerate those who were instituted bishops by the apostles and their successors down to our own times, men who neither knew nor taught anything like what these heretics rave about" (Saint Irenaeus
Against Heresies 3:3:1 [A.D. 180]).
To put it clearer:
I trust the Scriptures because I trust the Church [the Bishops, the Patriarchs, etc].
I trust the Church, because I trust the Holy Spirit.
I do not rely merely on my own interpretation [Like the Ethiopian told St Phillip, how can I understand what I read in the Scriptures unless someone explains them to me?], but the Holy Spirit-filled Tradition of the Living Church from the past 2,000 years. Simple, right?