The "religion" was already established as the law, the Torah - as Jesus said:
And if some of the branches be broken off, and thou, being a wild olive tree, wert graffed in among them, and with them partakest of the root and fatness of the olive tree; Boast not against the branches. But if thou boast, thou bearest not the root, but the root thee. - Romans 11:17-18
I don't despair of much, but I do despair of being able to have a thoughtful conversation about the nature of the Church here. I will read what you all write, but I'm not going to participate.