Thomas Aquinas

313. And the Lord shall set up. Here he describes the diversity of punishments as to three things which they trusted in. First, he threatens against the alliance of neighbors; second, against the use of persons whom they suppose that they have: and the Lord shall destroy (Isa 9:14); third, against the multitude of peoples: for wickedness is kindled (Isa 9:18). Concerning the first, he does two things. First, the punishment is set out; second, the preparation of further punishment: for all this (Isa 9:12). …

Commentary on Isaiah ↗