Thomas Aquinas

591. Third, as to the oppression of their enemies, namely, the Moabites, who were most hostile to them because of dreams. And first, he sets out their affliction: threshed: they have threshed Galaad with iron wains (Amos 1:3); second, their complete subjection: he shall stretch forth his hands, as though prostrate and seeking mercy or help, below: they shall come (49). And the destruction of their fortifications: and the bulwarks, which are mentioned above (Isa 16:7).

Commentary on Isaiah ↗