So for clarity's sake, I will repeat in question form:
Do you say that all churches that you could find in the Yellow Pages, all churches that have a name and an address, even an e-mail address, are false? invalid? Nicolaitan?
Do you think that making the true Yeshua assembly "findable" via a place, an address, contact information, etc. would be a step towards inauthenticity?
One would have to be able to find a church, in order to bring that church's judgment to bear in a matter of dispute as in Matthew 18:1. Say I have a dispute with a fellow believer. Where do I find a church?
Let's suppose I were to say I am a member of this Yeshua Church. Where would I find my fellow believers? Say I wanted to visit the Yeshua assemblies in East Tennessee. Is there a directory? A contact person?
I really don't know anything about Joel Osteen, Rick Warren, or David Jeremiah. They and their methods of publicity are not within my field of interest.
I do know the Apostles after Pentecost worked almost full time announcing the Gospel: they attracted crowds with their preaching, teaching, and mass baptisms. Does this conflict with our notion that there's "no need to advertise anything"?
The NT church, even in embryo, had structure: diakonoi, presbyteroi, episcopoi. It had recognized leadership, men who had the authority to say (like St. Paul) "Listen to this teacher" and "Don't listen to that teacher." "Celebrate the Lord's Supper this way," "Don't celebrate it that way." "Welcome this man into your community," "Expel that other man from your community." I suppose your Yeshua assemblies have recognized leadership, too?
>> “ Is there a directory? A contact person?” <<
.
The Holy Spirit.
Much the same way that Phillip encountered the eunuch in the desert, those that truly seek are guided home.
>> “Where do I find a church?” <<
Through prayer. There is no other way.
>> “Do you say that all churches that you could find in the Yellow Pages, all churches that have a name and an address, even an e-mail address, are false? invalid? Nicolaitan?” <<
Probably not all, but the overwhelming majority. Yeshua’s gate is very narrow, and few there be that find it. That is what he said.