The name Peter means a "rock". The Roman Catholic Church believes that Jesus made Peter the head of the Christian Church, and so all the Bishops of Rome (the Popes) must be the leaders of the Christian Church throughout the whole world. The Protestant and Orthodox churches believe that Jesus was speaking about the important words Peter had just said: ""You are the Christ and the Son of the Living God"" (Matthew 16:16), and that this "Confession of Faith" is the rock that the Christian Church is built on.