there is a flaw in this argument. there is an interpretation I assume you deem as valid but where did this come from? when you go back far enough do you cross a point where private interpretations are now official church doctrine? Doctrines were often violently forged by bishops, fought out until the last man was standing won, the loser cast out and declared a heretic while the other honoured and declared a saint. There was a good many motivations and agendas that were not honourable but the positons are now Orthodox. Because they are early church father's their words are in stone and cannot be checked. I agree every verse seems to have 1000 interpretations from 1000 denominations and some clearly very wrong so how do we know which is right and which is wrong? do we cast them aside and label them private interpretations or is there a place to still be critical even with the old stuyff? saying something is a "private interpretation" is not really an argument it's a deflection, I might as well say your thoughts are also private interpretations but that doesn't say anything at all except I don't want to talk about it anymore.
This is a challenge, I suppose. How can we possibly know that we believe right doctrine? Although, that really raises all sorts of philosophical questions as to how we can know anything at all.
To rise above the weeds on that, Our Lord told the apostles that the Holy Spirit would come and be teach all truth.
"But when he, the Spirit of truth, is come, he will teach you all truth. For he shall not speak of himself; but what things soever he shall hear, he shall speak; and the things that are to come, he shall shew you."
-- St. John 16:13 (DRA)
The Catholic Church believes that she is guided by the Holy Spirit to this day, supernaturally protected from teaching errors in faith and morals.
As ever with Protestants, different Protestants believe different things. But most Protestants would likely be reluctant to claim that their ecclesial communities are supernaturally guided by the Holy Spirit and protected from teaching error. Their members may claim to be guided in that way on an individual basis but not the corporate body itself.
Indeed, how can the Holy Spirit be teaching Protestant organizations all truth as per St. Luke 16 when these same Protestants can't even agree across the board on any single point of doctrine?
Meanwhile, the disagreements between the Catholics and the Orthodox are few and far between. Our disagreements with each other are more limited than some members of both Churches seem to realize. Even tho we're separated from each other, we disagree on very little. In one notable case, we disagree on only one thing.
By comparison, some Protestant bodies express such a wide variety of disagreement in their theology, soteriology, ecclesiology, etc, that an ignorant outsider might have a hard time understanding at first that they're actually adherents of the same religion.
If we take Our Lord at His word when He said that the Spirit would teach the Church all truth... well, obviously I think the Catholic Church has the strongest claim for being led to all truth. Far stronger than any Protestant community.