Bede

And I caused the leaders of Judah to ascend upon the wall, etc. The leaders of Judah, that is, of confession or praise, are indeed the more advanced teachers of the holy Church, who ascend upon the wall in the dedication of the city; because when the time of recompense shall appear, they will be shown to have transcended the general conduct of the holy Church by living more loftily. These are of whom the Lord promises to the same Church through the prophet, saying: "I have appointed watchmen upon your walls" (Isaiah XXVI). …

Commentary on Ezra and Nehemiah ↗