I think the Church is that body that is descended from the body that Jesus started:
They went from Jerusalem, to Judea, to Samaria, to the uttermost parts of the earth.
But they WERE NOT just anyone who decided to hang out a shingle with the words "First Church of the Stuff We Think Is Right."
A real church is both the spiritual descendants of the Early Christians and they are descended through the lineage of ordination.
If they can't demonstrate their connection to the early Church, then where is their authority? After all Jesus said that the Church would be unconquerable and that "the gates of hell would not prevail" against it.
Jesus also said to His Apostles: "those who are not against us are for us." when they complained once about "unauthorized" folks who were preaching about Him.
Therefore, any group of "spiritual descendents" will not reject those with an already established, traceable connection who have not apostacized and had their candlestick removed.
They will demonstrate unity.
Just my humble 2c worth.
"I think the Church is that body that is descended from the body that Jesus started:"
________________________________________
As I am sure you are aware, one of the never ending discussions here is about the primacy, or lack thereof, of the Roman Catholic Church. Are you ascribing to the view that because they claim succession through Peter that they are "The CHURCH"?
They went from Jerusalem, to Judea, to Samaria, to the uttermost parts of the earth.
But they WERE NOT just anyone who decided to hang out a shingle with the words "First Church of the Stuff We Think Is Right."
"If they can't demonstrate their connection to the early Church, then where is their authority? After all Jesus said that the Church would be unconquerable and that "the gates of hell would not prevail" against it."
______________________________________
The source of all authority on earth today rests in SCRIPTURE. It is the only source we have that is the inerrant WORD of GOD. All other sources, no matter how long or fine their history, come from man's opinion and has to be viewed with caution. If you fall into the trap of placing your FAITH in anything other than JESUS, such as a long established church, you are setting yourself up to be misguided.
The only thing "authority" is good for is for keeping people squashed under your thumb and calling someone else a heretic, even if the person doing the name-calling is the one who is heretical.