Were that true you would be able to demonstrate that exclusively from Scripture. Your argument is purely inductive which produces a deduction, not a truth or conclusion.
Your failure here is that you attribute to "Rome" that which belongs to the Holy Spirit. On those occasions when the Church speaks infallibly it is doing so not as another voluntary denominational organization but as the mystical body of the Church as established by Jesus and under the guidance of the Holy Spirit.
To be a Christian we have to believe that Jesus is God and that His words are not merely descriptive but carried with them the same power of creation as when God said; "Let there be light". They were transformative. When Jesus said; "Tabitha, get up. She opened her eyes, and seeing Peter she sat up. "When He said; Lazarus, come out! it was so. When He said; "Your sins are forgiven." they were. And when He said; And I tell you that you are Peter, and on this rock I will build my church" it too was so.
For what Scripture reveals is that being an instrument of the Holy Spirit does not equate to assured infallibility, which is what Rome claims she has..."
Were that true you would be able to demonstrate that exclusively from Scripture. Your argument is purely inductive which produces a deduction, not a truth or conclusion.
What kind of truth or conclusion are you asserting ? Do you really believe that Scripture itself does not conclusively show that being an instrument of the Holy Spirit, which the Jews surely were as the instruments and steward of Divine revelation, (Rm. 3:2; 9:4) does not equate to assured infallibility? Or do you think they were assuredly infallible whenever they spoke on faith and morals to their flock? Only God is, and His assured word is Scripture.
On those occasions when the Church speaks infallibly it is..as the mystical body of the Church as established by Jesus and under the guidance of the Holy Spirit.........
And so forth as she and her children must preach a church, but we are not impressed by such arguments by assertion for this object of devotion.