The same way you interpret whatever dogmas your church tells you to believe. By assuming words have meaning, and applying a historical-grammatical hermeneutic to the text.
This seems to me a ludicrously anachronistic bar for someone to have to jump over, which reflects nothing as much as the biases of post printing press people with easy access to vast amounts of information (and more specifically, highly-educated, literate people), which wasn't the norm for 99.9% of all Christians who ever lived. Can you imagine giving this answer to the wife of Roman soldier in the third century, a Persian orphan in the 6th century, or a Serbian grandma in the 11th century, probably none of whom could read, let alone go down to the local Christian bookstore to buy a copy of the Bible on papyrus and figure it all out for themselves?
It has practices and beliefs that cannot be found in the New Testament
But that's just begging the question, assuming that all Christian practices and beliefs are explicitly outlined in the New Testament, which purports to do no such thing. Where's the liturgy and order of worship?
This is an anachronistic presupposition of people who, for instance, buy a power tool and get an instruction manual exhaustively explaining every single thing it does. I'm sorry, but this way of thinking is extremely recent and totally foreign to how ancient people thought and the limitations of their world. Writing was slow, expensive, and inefficient. Oral teaching and training was quick and could (and indeed did) spread like wildfire. If the apostles stopped to write an instruction manual exhaustively explaining every single aspect of Christian faith and practice (especially worship), it's safe to say it would have vastly slowed their mission and greatly limited the scope of people who could even be reached.
I'm honestly curious what verses you're referring to by saying it contradicts the Bible, especially since you just quoted Matthew 18:20 in your post, which seems very clear and incontrovertible ("For where two or three are gathered in my name, I am there"). Christ himself says He is there, who are you or any other man to say otherwise?
Who is Jesus addressing? Not every single person reading the text. He's talking to His Apostles. That's an important detail which seems to be omitted by people who take this verse out of context to justify a Church-less Christianity. Not to mention, using this line of reasoning, what's to stop the Judaizers, or Gnostics, or other heretics addressed in the Acts or Epistles from justifying themselves with this exact same reasoning?
If Christian's can't know what the Bible is until it's canonized, then how are there Church Fathers in the 1st century who recognize the New Testament as Inspired Scripture?
You're making a false equivocation of Church Fathers who recognized books as inspired, with the canon of books that constitute Scripture. Nobody on earth had the Protestant canon of Scripture in the first century, and some books of Scripture weren't recognized as such for a long time afterward.
The Eastern Orthodox Canon is a post-Reformation invention. The canon that you believe in wasn't canonized until 1672 by a synod in Jerusalem.
By this same line of thinking, you could argue that the Trinity was invented at the second ecumenical council, or that the divinity of Christ was only decided at the third council, or even by sexual revisionists of the Fordham variety that the Church has never said anything about Loving Homosexual Relationships in an ecumenical council. When you're leaning on the same reasoning used by skeptics and subversives, it may be time to reevaluate things.
God also allowed Satan to rebel with 1/3 of the angels, allowed Adam to fall into sin in Eden, and allowed his precious and perfect son to die an ignominious death on a cross in place of the most vile and wretched sinners. Maybe God's plan is simply beyond your understanding? A little humility would serve you well.
This is really missing the point, since you're basically saying that Jesus contradicted himself, if not outright lied. And it's not even an argument. "God works in mysterious ways, bro."
All Scripture is breathed out by God and profitable for teaching, for reproof, for correction, and for training in righteousness, that the man of God may be complete, equipped for every good work. - 2 Tim. 3:16-17
Who is the "Man of God"? Protestants seem to just assume it refers to anybody who calls himself a Christian, but in Scripture it has a very particular semantic range usually applied to Old Testament prophets, and here, to Timothy, a bishop, ordained by Paul's laying of hands.
Scorpion follows with a long list of nice Bible verses, all of which say positive things about Scripture or God's word, but
not what analyst_green requested: "
verses saying Scripture is the only or primary source of authority." These verses only show that Scripture is positive, beneficial, or can be used to correct error. Orthodox don't dispute any of these things, none of which are equivocal to the doctrine of Sola Scriptura.
I think the real lynchpin quote in this discussion is here:
It's not the fault of the Bible if a church apostatizes.
Some of the commenters here like GodfatherPartTwo seem to think that Orthodox are somehow insulting Scripture and must rush to defend it, but this seems totally misplaced. Nobody here is denigrating Scripture, just criticizing the
way that it's used in the (varying) protestant traditions and pressed into a role it wasn't meant to be utilized, and various negative effects resulting (eg., massive doctrinal plurality, centuries-long irreconcilable disputes between protestant traditions over fundamental doctrines and practices, and so on.) We love Scripture, we just don't think it's the sole source and repository of Christian doctrine and practice - which I would argue is not just an idea that came a lot later, but an anachronistic, post-printing press perspective borne from highly literate people used to having vast amounts of text easily recorded and distributed via print at low cost, and have a bit of a hard time grasping what things were like before that.