Isaías 2

Isaías 2:3

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. Just so, by an increase in the spreading of the word, [the church] would extend the branches of her teaching into the whole wide world.… It was opportune that the preaching of repentance and the forgiveness of sins, good news to be proclaimed to idolatrous nations and those defiled by various evil deeds, should take its start from Jerusalem, lest any of those defiled, thoroughly terrified by the magnitude of their offenses, should doubt the possibility of obtaining pardon if they performed fruits worthy of repentance, when it was a fact that pardon had been granted to those at Jerusalem who had blasphemed and crucified the Son of God. — Homilies on the Gospels 2:15