Isa 26:1-21. Connected with the Twenty-fourth and Twenty-fifth Chapters. Song of Praise of Israel after Being Restored to Their Own Land.
As the overthrow of the apostate faction is described in the twenty-fifth chapter, so the peace of the faithful is here described under the image of a well-fortified city.
1. strong city—Jerusalem, strong in Jehovah's protection: type of the new Jerusalem (Ps 48:1-3), contrasted with the overthrow of the ungodly foe (Isa 26:4-7, 12-14; Re 22:2, 10-12, &c.).
salvation … walls—(Isa 60:18; Jer 3:23; Zec 2:5). Maurer translates, "Jehovah makes His help serve as walls" (Isa 33:20, 21, &c.).
bulwarks—the trench with the antemural earthworks exterior to the wall.