The church started with the Catholics teaching that a Jew named Jesus came to earth to save ONLY those in the Catholic faith, and that he was coming back to TAKE only those in the Catholic faith to Christian heaven.<quoted text>
What if it is a simple as this.
The Church started with the Apostles.
The supposed apostles were simply part of the story to mislead with the idea that Jews left Judaism along with Jesus to support Christianity.
It was all nonsensical gibberish, as was and is all religion put forth by the lying theologians.