As I understand it, we must accept that the Church is valid in what she teaches.
That was my understanding also.
If we believe she is completely wrong, then we shouldn't be joining, for the sake of our own conscience. And the Church would be right to reject us, if she knows we disagree fundamentally.
It reminds me though of when I joined a Baptist denomination. I had to sign a paper promising not to work anywhere that sold alcohol, and probably promised not to drink alcohol either. That's what they believe, and demand.
Every fellowship will certainly reserve for themselves the right to decide what must be agreed to in order to become a member.
As an administrative matter, sure. That's correct. Your church--and most Baptist churches--have statements of principles and so on. BUT what's in them?
Is it a set of basics that come from the Bible...or are they what the church has decided on, including a number of doctrines that are NOT Scriptural? To me, that's a big deal.
All I can tell you is that my priest (and I know others) have specifically affirmed that one may become Orthodox while being not personally accepting of intercessions of the Saints, have every right to refrain from such prayers. But ... there must be the disposition to accept that the Church teaches the truth, yes.
Very well. At least we are on the same page as to what the situation is.
I think one way to express that is that we don't put our own opinions over the teaching of the Church. If we do, then we really shouldn't join, should we? Regardless of what fellowship.
My personal and heartfelt opinion is "no." It's not right to join any church while holding in secret a purpose of evasion like that. It's the same perspective I have about going to communion in another denomination's church when you know that they do not practice open communion. Yet there are plenty of Christians who say--including a number here--that it's perfectly all right to defy all these dos and don'ts and make the decision for oneself.
However, we're off the subject. JOINING is not the real issue. It's whether or not the church's doctrinal standard is right or wrong, which is based to a large extent on what the supporting basis for that standard happens to be.
Afaik, Lutherans regard intercessions of the Saints as allowable, but not required.
Confessional Lutherans reject the practice of praying to the dead. That would be true of almost all Protestants, but the Lutherans are among the one closest to your church in most of those items you mentioned (liturgical calendar, monasticism, etc.), and that's why they got the mention from me.
Nothing that comes to mind immediately. My point is that they believed, they practiced, they worshipped, they had community, they did everything WITHOUT the Scriptures.
If that didn't include anything that isn't now in the Bible, I don't see an issue.
My point was how divergent beliefs can be, even though Scripture is the supposed only authority. Except it's not ... HOW it is read and interpreted vastly skews doctrine, because we all have the same (NT) Bible.
We've been all around that mistake before, so let me try another way to explain it.
Mr. X or Church X says that infant baptism is wrong...and cites a verse from Scripture.
Mr. Y or Church Y says that it is proper...and cites a different one.
They obviously disagree although both are following the guidance of the Bible. They have that much in agreement.
Mr. Z or Church Z says that his church, or St. Thomas Aquinas, or St. Ignatius, or an old legend from the early church, or something else claims that baptism must be done standing up (or whatever).
What's the difference between them? Just this--whichever of the first two is correct, they both are using God's word to decide. That's what Sola Scriptura asserts, i.e. go with the highest authority, for God cannot be wrong. We can be, but He cannot be.
So we have to decide which man of the first two understands the Bible correctly. But the third man, Mr. Z, isn't even using it as his sole authority.
The first two men or churches have the METHOD and the SOURCE correct; it's only a matter of knowing which one understand it correctly. The third man or church isn't even relying upon the same method or source.