The hallowed phrase, “the keys of the kingdom,” is perhaps the most striking among the powerful phrases of the Bible. Yet the phrase has become rather overlooked among Catholics just as they have grown boastful of their biblical re-orientation. Life — individual, corporate, and global — has become dependent on keys as never before. Modern man does not, however, reflect on the technical marvels of individuality that dangle on his keyring. Nor does he suspect that his keys came into wide use in the centuries immediately preceding Christ. Christ’s words to Peter, “I give you the keys of the kingdom of heaven,” have therefore a special cultural setting.