[RoadTest]

“He’s talking about the origin of the Vatican state, not the origin of the Catholic church.”

Same thing.

[Boogieman]

“Same thing.”

No, not at all. We don’t send ambassadors to churches.

[Mrs. Don-o]

If you look into it carefully, you will quickly see you are making a category mistake.

Vatican City/State is a diplomatic and political site which, for the time being, houses some of the administrative offices of the Catholic Church. The Catholic Church itself is much vaster: it extends across around the world, and from Pentecost until Christ comes again.

Thus, the Vatican state and the Catholic Church can be distinuished. See here (Link)