Gregory the Great, on Ezek 40:2

“In the visions of God he brought me into the land of Israel, and set me upon a very high mountain: upon which there was as the building of a city, bending towards the south.”

“Upon which there was as it were the building of a city facing toward the South. It should be noted that it does not say, "Upon which there was a building," but "as it were a building," so that it might clearly be shown that all these things were said not of a corporeal but of a spiritual city's building. For he who declares that he saw not a building but as it were a building directs the hearts of his hearers to a spiritual construction, as is said through the Psalmist: "Jerusalem which is built as a city." For since that vision of inner peace is constructed from the congregation of holy citizens, the heavenly Jerusalem is built as a city. Yet while in this land of pilgrimage she is struck with scourges, beaten with tribulations, her stones are daily squared. And this is the city, namely the holy Church, which though destined to reign in heaven still labors on earth. To whose citizens Peter says: "And you as living stones are built up." And Paul says: "You are God's field, God's building." Which city indeed already has here in the conduct of the saints its great building. For in a building stone bears stone, because stone is placed upon stone; and he who bears another is borne by another. So therefore, so in holy Church each one both bears another and is borne by another. For neighbors mutually tolerate one another, so that through them the building of charity may rise. Hence Paul admonishes, saying: "Bear one another's burdens, and so you will fulfill the law of Christ." Declaring the power of which law, he says: "Love is the fulfillment of the law." For if I neglect to bear you in your conduct, and you disdain to tolerate me in my conduct, whence does the building of charity rise between us, whom mutual love does not join together through patience? Moreover in a building, as we said before, the stone that bears is borne, because just as I now tolerate the conduct of those who are still unpolished in the way of life of good work, so I too was tolerated by those who preceded me in the fear of the Lord and bore me, so that having been borne I might learn to bear. But they too were borne by their elders. However the stones that are placed at the top and at the end of the structure are indeed borne by others, but they bear no others at all, because those who will be born at the end of the Church, that is at the extremity of the world, are indeed tolerated by their elders, so that their conduct may be shaped to good works; but since none follow them who might progress through them, they bear no stones of the faithful structure upon themselves. Now therefore some are borne by us, but we were borne by others. Yet the foundation bears the entire weight of the structure, because our Redeemer alone tolerates the conduct of all together. Of whom Paul says: "For no one can lay another foundation besides that which has been laid, which is Christ Jesus." The foundation bears the stones and is not borne by the stones, because our Redeemer tolerates all our faults, but in him there was no evil that needed to be tolerated. Hence it is well said now: "He set me down upon an exceedingly high mountain, upon which there was as it were the building of a city," because he alone sustains our conduct and faults, who bears the entire structure of holy Church. Who says through the voice of the prophet concerning those still living perversely: "I have grown weary enduring." Yet the Lord does not grow weary by enduring, whose power of divinity no weariness touches; but, speaking in human words, he calls his very patience toward us labor.”

Imported from an open dataset — not yet checked against the printed edition.