Isaiah 58:12

The prophetic word comes to us through two further metaphors, and the beautiful form of hidden ideas is displayed. For it is about a deserted town and its defenseless state that a form of words is molded. It declares, your deserts will be lived in perpetually, that is, you will not be naked of good thoughts indwelling your heart, nor will you be defenseless or unguarded and insecure. For Christ will be your enduring foundation and support, and like a city you will have countless people dwelling there. For the souls of the saints are full of holy words and thoughts. And many will come to it as the level of perfection, running up and down, declaring it to be full of good things. And you will be called a builder of walls.… You must know that there are evil and contrary powers invading the vulnerable soul, giving rise to awful desires and in a despotic way carrying off whatever they want and strolling round the barren garden. But they will stop this interference when a wall is erected, that is, the divine fear set up within [the soul].

(Verse 12.) And the deserts of the ages will be built in you: you will raise the foundations of generation after generation: and you will be called the builder of walls, turning paths into peace. LXX: And the deserts will be built for you from the age and your foundations will be everlasting for generations and generations: and you will be called the builder of walls, and you will make paths rest in the middle. Not only, he says, will your light arise in the darkness, and your darkness will be like midday, and the Lord will give you rest always, and you will be like a well-watered garden, and so on; but what has long been deserted will be rebuilt in you, and the foundations of your buildings will remain for many generations: so that either you yourself will be called the builder of walls and ramparts, or someone will arise in you who will be the builder of walls, and he will turn the paths into peace, or according to the Septuagint, he will make the roads in the middle to rest. These Jews and their friends in the western provinces are referring to the restoration of the cities of Palestine. They argue that either these things were done under Zorobabel and Ezra, and Nehemiah, or they will happen in the future: the highest foundations must be laid for the restoration of Jerusalem and the surrounding cities, and such high walls must be built that no enemy can enter, and the entrance of all enemies into them must be prohibited. But we, following the order of the explanation that has been begun, say that what was deserted among the Jews is being built in the Church, not for a short time, but forever, and its foundations must be raised from both peoples, that is, in two generations. Where the Apostle says: Like a wise architect, I laid the foundation; another builds upon it. But let each one see how he builds upon it (1 Corinthians 3:10). And in another place: We are God's field, God's building (Ephesians 2:20). And it is to be called, or when someone is born in it, the builder of fences. About this we read in the psalm: Man is born in it, and the Most High has founded it (Psalm 87:5). The Scripture mentions that fields and vineyards are surrounded by hedgerows and walls, which is signified by the Greek term φραγμοῦς. You have transferred a vineyard from Egypt: you have uprooted the nations and planted it. And a little later: Why have you destroyed its walls? And…