The interpretation timeline
Psalm 68:36 Douay-Rheims

For God will save Sion, and the cities of Juda shall be built up. And they shall dwell there, and acquire it by inheritance.

A.D. 430 – 1849 3 witnesses 4 excerpts

Patristic

before A.D. 750
430
A.D.
Augustine of Hippo Patristic
A.D. 354–430
“Hear thou another thing also: "for God shall save Sion" [Psalm 69:35]. He restores His Church, the faithful Gentiles He does incorporate with His Only-Begotten; He beguiles not them that believe in Him of the reward of His promise. "For God shall save Sion; and there shall be built the cities of Juda." These same are the Churches. Let no one say, when shall it come to pass that there be built the cities of Juda? O that you would acknowledge the Edifice, and be a living stone, that you might enter into Her. Even now the cities of Juda are being built. For Juda is interpreted confession. By confession of humility there are being built the cities of Juda: in order that there may remain without the proud, who blush to confess.”
Source
“"For God shall save Sion; and there shall be builded the cities of Juda." These same are the Churches. Let no one say, when shall it come to pass that there be builded the cities of Juda? O that thou wouldest acknowledge the Edifice, and be a living stone, that thou mightest enter into Her. Even now the cities of Juda are being built. For Juda is interpreted confession. By confession of humility there are being builded the cities of Juda: in order that there may remain without the proud, who blush to confess. "For God shall save Sion." What Sion? Hear in the following words: "and the seed of His servants shall possess Her, and they that love His name shall dwell therein."”
Source

Post-Reformation

c. 1650 – 1900
1771
A.D.
John Gill Reformed
1697–1771
“The seed also of his servants shall inherit it,.... Not their natural, but spiritual seed, or a succession of converts in the churches; see Psa 45:16; who are born not of blood, nor of the will of the flesh, nor of the will of man, but of God; not of corruptible, but incorruptible seed, by the word of God, which lives and abides for ever, Joh 1:13; these are the proper and rightful inheritors of the Gospel church state, and all its privileges, in all successive generations, quite down to the New Jerusalem church state, wherein will dwell only righteous persons, and whose names are in the Lamb's book of life. Aben Ezra's note upon it is, "they shall inherit it, they and their children, in the days of David, or in the days of the Messiah;'' and they that love his name shall dwell therein; that love the person, Gospel, truths and ordinances of Christ; see Sol 1:3; these shall have an abiding place in Zion, the church of God; in the cities of Judah, particular congregational churches; and in the city of the New Jerusalem, where will be the tabernacle of God among men, and he shall dwell among them, and they with him. Next: Psalms Chapter 70”
Source
1849
A.D.
1774–1849
“Sion. The Catholic Church. The cities of Juda, &c., her places of worship, which shall be established throughout the world. And there, viz., in this Church of Christ, shall his servants dwell, &c. (Challoner) (Worthington) — It matters not whether a person live in the Church of God, which is at Corinth, or at Philippi, provided he be a member of the Catholic Church. But those who adhere to separate congregations, and style themselves “the Church of England,” or “the Kirk of Scotland,” &c., cannot be written with the just, (ver. 29.) nor have any part in this prediction. (Haydock) — It alludes to the restoration of the captives, (Calmet) or rather to the propagation of the gospel, (Haydock) of which the former was a figure, (Eusebius; St. Augustine) as the Jews were never quietly settled again in their country, and were expelled by Titus; whereas the Church of Christ remains to the end of the world. (Berthier)”
Source
Modern · 1953 →

The in-app commentary runs from the Fathers to the early-modern record, then stops — that's where the public-domain sources end, not where the reading does. For the modern reading, follow the sources directly.