Mattityahu 16:18-20

And I also say to you that you are Shim'on Kefa and upon this TSUR I will build my Kehillah, my Chavurah (the Community of Moshiach) and the shaarei Sheol (gates of Sheol) shall not overpower it. I will give you the maftechot Malchut HaShomayim (keys of the Kingdom of Heaven); and whatever you shall bind as asur (prohibited) on haaretz shall be bound as asur (prohibited) in Shomayim, and whatever you shall loose as mutar (permitted) on haaretz shall be loosed as mutar (permitted) in Shomayim. Then Rebbe, Melech HaMoshiach gave the directive to his talmidim that they should tell no one that he was the Rebbe, Melech HaMoshiach.