The prophet also foretold that the new Jerusalem, the city of this priestly monarch, should be built of a size so great that it could not be enclosed by walls. "I will be to it a fire round about: and I will be the glory in the midst thereof. Jerusalem shall be inhabited without walls, by reason of the multitude of men." [Footnote 38] [Footnote 38: Zach. ii. 4.] [USCCB: Zechariah ii. 9.] {124} This is the Holy Roman Church, considered in its Catholic extension as the mother and mistress of churches in all parts of the world, which are bound together in one Holy Catholic Church by their obedience to the supremacy of the Roman Pontiff. The Holy, Catholic, Apostolic, Roman Church includes the whole vast number of the faithful in her fold in fact, and all mankind in right. No walls--that is, no bounds short of the limits of the earth--can be set to her rightful jurisdiction. And beyond this, the prophet teaches us that her strength does not consist in fortifications and bulwarks of stone, or, in other words, is not derived from any material resources, whereas it is spiritual in its origin and nature. God is a wall of fire round about her, and her glory in the midst of her. The Roman Church is made glorious by the gifts of the Holy Ghost, by spiritual might and force, by truth, grace, and sanctity. These same divine gifts and powers pervade the whole Catholic Church by virtue of communion with the See of the Vicar of Christ. The burning light of faith, the burning fire of charity, are concentrated within, and diffused all around the Catholic Church, constituting all her glory and all her power, and by these she illumines and inflames the whole world. {125} The Church is really and truly a kingdom, that is, a stable and perfect society, established upon a permanent constitution, with a hierarchy having power to make laws and exercise jurisdiction, and bound together in unity by a monarchical regimen. This kingdom is spiritual, because it is established for the spiritual and eternal welfare of men, and because it is founded on ideas and principles which belong to the supernatural order. That is, it is founded on faith in Divine revelation, in truths and doctrines made known by Divine inspiration, and on a right and authority conferred immediately by Jesus Christ, acting in his quality of Redeemer and Regenerator of mankind. Moreover, it is by supernatural and Divine grace, by Divine, life-giving sacraments, that men are constituted members of the Church and of the hierarchy. The Church overcomes the minds and hearts of men by truth and grace, by inward conviction and conversion, and thus, through both mind and heart, subdues them entirely to herself. She makes individuals and nations her subjects, by making them parts of the Church, and thus amenable to her laws. They are subject to her jurisdiction, as the spiritual kingdom of God, in everything which relates to doctrine, sacraments, and