***Scriptures didn’t come from a particular earthly church, but “holy men of God spake as they were moved by the Holy Ghost.” (2 Peter 1:21)
Individual holy men were selected by the Holy Ghost.***
The NT was selected by the Catholic Church and made canon. There were many holy writings; only some of them were holy enough to be Scripture.
The "holy Men of God who spake as they were moved by the Holy Ghost" were either Israel or the new Israel, that is, the Church.
There is no "particular earthly church" strictly speaking. There is the Church. It's fullness (on earth) is with those who are in communion with the See of Peter.
The Holy Ghost "selects" members and grafts them into the Church and works on earth through the Church, that is those members selected and grafted and given their individual gifts.
I know Brother JL won't agree, but it seems to me this is a better articulation of our stand and may help to identify and to place in relief the differences.