Psalms 87:1

A psalm of a canticle, for the sons of Korah. The difference between a psalm and a canticle I have often stated. A psalm is spoken from the psaltery, but a canticle is uttered from the voice. A psalm has to do with the hands, that is, with works; a canticle with contemplation (theoria).

Its foundations are in the holy mountains. He did not say beforehand whose, yet he said, Its foundations are in the holy mountains. The one who speaks is the prophet: the sons are of Korah. What Korah means, I have often stated: a skull, that is, the sons of the resurrection. Its foundations: whether of God, or certainly of the Church. And what are the foundations, if not the Father and the Son and the Holy Spirit? These foundations, then, are not in the valleys, but are in the mountains: and not on any mountains whatever, but on the holy mountains. Paul says: 'As a wise architect I have laid the foundation'—that is, faith in the Trinity. Then he also says in another place: 'For he was awaiting the city having foundations, whose builder and maker is God.' Its foundations are in the holy mountains. He said, In the holy mountains, because there are also other mountains that are not holy. Then it is also said in Isaiah: 'Upon the dark mountain lift up a sign.' And in another place it is said: 'Who are you, corrupt mountain?' It is also said in Jeremiah: 'Give glory to the Lord your God, before your feet stumble against the dark mountains.' You see, then, that there are also dark mountains: and it is said to us by Jeremiah that we should give glory to God before our feet stumble against the dark mountains. For if our feet strike against those mountains, we cannot give glory to the Lord. Its foundations are in the holy mountains. Whom can we call the foundations? The apostles. In them were the foundations: where the faith of the Church was first laid, there too the foundations were laid.

"Her foundations are upon the holy hills" (ver. 1). The Psalm had as yet said nothing of the city: it begins thus, and says, "Her foundations are upon the holy hills." Whose? There can be no doubt that foundations, especially among the hills, belong to some city. Thus filled with the Holy Spirit, and with many thoughts of love and longing for that city, as if after long internal meditation, that citizen bursts out, "Her foundations are upon the holy hills;" as if he had already said something concerning it. And how could he have said nothing on a subject, respecting which in his heart he had never been silent? For how could "her foundations" have been written, of which nothing had been said before? But, as I said, after long and silent travailing in contemplation of that city in his mind, crying to God, he bursts out into the ears of men thus: "Her foundations are upon the holy hills." And, supposing persons who heard to enquire of what city he spoke he adds, "the Lord loveth the gates of Sion." Behold, then, a city whose foundations are upon the holy hills, a city called Sion, whose gates the Lord loveth, as he adds, "above all the dwellings of Jacob." But what doth this mean, "her foundations on the holy hills"? What are the holy hills upon which this city is built? Another citizen tells us this more explicitly, the Apostle Paul: of this was the Prophet a citizen, of this the Apostle citizen: and they spoke to exhort the other citizens. But how are these, I mean the Prophets and Apostles, citizens? Perhaps in this sense; that they are themselves the hills, upon which are the foundations of this city, whose gates the Lord loveth Let then another citizen state this clearly, that I may not seem to guess. Speaking to the Gentiles, and telling them how they were returning, and being, as it were, framed together into the holy structure, "built," he says, "upon the foundations of the Apostles and Prophets:" and because neither the Apostles nor Prophets, upon whom the foundations of that city rest, could stand by their own power, he adds, "Jesus Christ Himself being the head comer stone." That the Gentiles, therefore, might not think they had no relation to Sion: for Sion was a certain city of this world, which bore a typical resemblance as a shadow to that Sion of which he presently speaketh, that Heavenly Jerusalem, of which the Apostle saith, "which is the…