18 And I say also unto thee, (Jesus talking to Peter) That thou art Peter, (Jesus now talking about himself) and upon this rock I will build my church; and the gates of hell shall not prevail against it. (a missinterpretation of this verse opens up many problems including biblical contradiction and placing a person in Jesus's place as the cornerstone)
19 And I will give unto thee the keys of the kingdom of heaven: (this is talking about the Holy Spirit and is avaliable to everyone who accepts Him... If an incorrect interpretation above comes to the conclusion that Jesus is only talking about Peter then once again you have a religion that places Peter upon the same place as Jesus) and whatsoever thou shalt bind on earth shall be bound in heaven: and whatsoever thou shalt loose on earth shall be loosed in heaven.