Good grief!
The Holy Bible IS the inspired word of God. But it needed the faith community of the Church to the full Canon of the OT/NT together from the time of the early Church.
NO CHURCH, NO BIBLE.
Correction: to put together.
The authority of Rome came later. But you know that.
I would assert that GOD used your institutional religion to bring forth HIS purposes, but that does not mean your particular religious institution is THE authority. We both know that GOD can and does use even corrupted beings to accomplish HIS purposes.