Communium Rerum §38

³⁸ Certainly it is a wonderful thing that the union of the Bishops and the faithful with the Roman Pontiff has drawn ever more and more close amid the hurtling of the storms that have been let loose on Christianity through the ages, and in our own times it has become so unanimous and so warm that its divine character is more apparent than ever before. It is indeed Our greatest consolation, as it is the glory and the invincible bulwark of the Church. But its very force makes it all the more an object of envy to the demon and of hatred to the world, which knows nothing similar to it in earthly societies, and finds no explanation of it in political and human reasonings, seeing that it is the fulfillment of Christ's sublime prayer at the Last Supper.