And he said to them, "But who do you say that I am?" And Peter answered, "The Christ of God." But he charged and commanded them to tell this to no one.

Luke 9:20-21

"There is one God and one Christ, and one Church, and one chair founded on Peter by the word of the Lord. It is not possible to set up another altar or for there to be another priesthood besides that one altar and that one priesthood. Whoever has gathered elsewhere is scattering."

- St. Cyprian of Carthage