Justin Martyr

And when the Spirit of prophecy speaks as predicting things that are to come to pass, He speaks in this way: "For out of Zion shall go forth the law, and the word of the Lord from Jerusalem. And He shall judge among the nations, and shall rebuke many people; and they shall beat their swords into ploughshares, and their spears into pruning-hooks: nation shall not lift up sword against nation, neither shall they learn war any more." And that it did so come to pass, we can convince you. …

The First Apology, Chapter XXXIX ↗

Augustine of Hippo

The first law, the Old Testament, had come out of Mount Sinai by the lips of Moses; but it was foretold of the law Christ came to give: "The law shall come forth from Zion, and the word of the Lord from Jerusalem." This explains why Christ ordered repentance to be preached in his name among all peoples but beginning in Jerusalem.

City of God 18.54 ↗

Jerome

And they shall say: Come, let us go up to the mountain of the Lord, and to the house of the God of Jacob: and he will teach us his ways, and we will walk in his paths. The nations and peoples, not content with their own salvation, will encourage one another and say: Come, let us go up to the mountain of the Lord and to the house of the God of Jacob. Concerning these, as we have said before, it is the mountain of the Lord that is prepared and the house of the Lord that is established upon the top of the mountains. …

Commentary on Isaiah ↗

Bede

It was opportune that the preaching of repentance and the forgiveness of sins through confession of Christ's name should have started from Jerusalem. Where the splendor of his teaching and virtues, where the triumph of his passion, where the joy of his resurrection and ascension were accomplished, there the first root of faith in him would be brought forth; [there] the first shoot of the burgeoning church, like that of some kind of great vine, would be planted. …

Homilies on the Gospels 2:15 ↗