Augustine of Hippo

As though it were said, How do ye know this? All of us have sung these Psalms: and Christ, Man for our sake, God before us, sings within us all. But is this much to say, "before us," of Him who was before heaven and earth and time? He then, born for our sakes a man, in that city, also founded her when He was the Most High. Yet how are we assured of this? "The Lord shall rehearse it when He writes up the people" [Psalm 87:6], as the following verse has it. …

Exposition on Psalm 87 ↗

Jerome

The Lord will tell in the writing of the peoples and of the princes, of these who have been in her. He did not say, who are in her; but, who have been in her. The Lord will tell. And how will he tell? not by word, but by writing. In whose writing? in that of the peoples. That is not enough, but he also says, of the princes. And of which princes? who are in her? He did not say this; but, who have been in her. See, then, how holy Scripture is full of sacraments. …

Homily 18, on Psalm 86 ↗