When Jesus came to the neighborhood of Caesarea Philippi, he asked his disciples this question: "Who do people say that the Son of Man is?" They replied, "Some say John the Baptizer, others Elijah, still others Jeremiah or one of the prophets." "And you," he said to them, "who do you say that I am?" "You are the Messiah," Simon Peter answered, "the Son of the living God!" Jesus replied, "Blest are you Simon son of Jonah! No mere man has revealed this to you, but my heavenly Father. I for my part declare to you, you are 'Rock,' and on this rock I will build my church, and the jaws of death shall not prevail against it. I will entrust to you the keys of the kingdom of heaven. Whatever you declare bound on earth shall be bound in heaven; whatever you declare loosed on earth shall be loosed in heaven."