23 Aug KEYS
Guarantees given to Peter and his successors: The Catholic Church teaches that by giving Peter the “keys” along with the promise that all his decisions would be ratified in Heaven, Christ gave Peter the power of freedom from error when he was officially teaching the universal Church. In other words, Peter received primacy in the Church and the gift of infallibility in his official teaching on matters of Faith and morals. The first Vatican Council defined this Dogma, and the second Vatican Council reconfirmed it. As the Church was to continue long after Peter had died, it was rightly understood from the beginning that those privileges given to him which were necessary for the successful mission of the Church, were given to his lawful successors – the Popes.