That church loses its authority the moment she plays the harlot. God then raises up others to carry the mantle. Such has been the case all the way down through history.
All the while the scriptures remain constant and are the final authority regardless of the ecclesiastical pedigree of those claiming to be above scripture.
"Harlot" is asserted but never proven, and you can't name anyone who claimed to be above scripture. It's a stupid canard.
The one true Church is and always will be in harmony with God’s inspired revelation, the Bible. Thus, we reject any form of Protestantism, because they fail this test. It’s not a matter of one thing being “under” the other. All of that is the invention of the 16th century and the biblically bankrupt and meaningless notion of
sola Scriptura. The Bible presents Scripture-Tradition-Church as a “three-legged stool”: the rule of faith. All are in harmony; all work together.
You’re trying to set the Bible against the Church, which is typical Protestant methodology, and ultra-unbiblical.
The Bible never does that. I’ve already given the example of the Jerusalem Council, which plainly shows the infallibility of the Church.
The Bible repeatedly teaches that the Church is indefectible; therefore, the hypothetical of rejecting the (one true, historic) Church, as supposedly going against the Bible,
is impossible according to the Bible. It is not a situation that would ever come up, because of God’s promised protection.
What the Bible says is to reject those who cause divisions, which is the very essence of the onset of Protestantism: schism, sectarianism, and division. It is Protestantism that departed from the historic Church, which is indefectible and infallible (see also 1 Tim 3:15). What the Bible says is to reject those who cause divisions, that is Paul's test that Protestantism
FAILS.
Schism, sectarianism, division, plundering church property, systematic persecution of anyone who disagreed with the so called reformers, theological chaos and censorship was the immediate rotten fruits of the Protestant Revolt, and you come along with a ridiculous "tradition" of your own making.
"scriptures remain constant and are the final authority" is not found anywhere in the Bible, that's your man made tradition, and you guys haven't been able to defend sola scriptura for 500 years, with 40,000 "final authorities". You can't even agree whether or not baptism is an essential doctrine, a fine example of your "final authority".