Thomas Aquinas

Second, the multitude of their enemies: and they shall come, and shall all of them rest in the torrents of the valleys, for the benefit of water, which usually runs in valleys, and in the holes of the rocks, for fortification, and upon all places set with shrubs, for wood, and in all hollow places, for locations of homes, below: and the stretching out of his wings shall fill the breadth of your land (Isa 8:8).

Commentary on Isaiah ↗