God's Armour: Righteousness, Salvation, and Vengeance Combined

Isaiah 58:17 unveils Jehovah as a warrior adorned not in ordinary military garb, but in the vestments of His own divine character. The passage presents three critical pieces of this celestial armour, each representing a facet of God's redemptive nature.

First, He puts on "righteousness as a breastplate"—the inexorable justice that guards His heart and protects His Church from enemies. This righteousness belongs uniquely to Him; it manifests both in the equity of His laws and in His providential dealings, whereby He repays adversaries and exalts His upright servants to happiness.

Second, He wears "a helmet of salvation upon His head," affording perfect security and complete safety when contending with those who rise against Him. This salvation shields the Son of God from all insults aimed by His foes.

Third, He dons "garments of vengeance for clothing"—not merely destructive instruments, but the ordered expressions of His wrath against wickedness. F. Delitzsch notes that these manifold self-manifestations emerge from wrath and love combined, forming the inexorable justice of God compared to brazen coat-of-mail, His salvation to a glittering helmet, His vengeance to bright-coloured garments.