For the moth will eat them up like a garment, and the worm will eat them like wool, but my righteousness will be forever, and my salvation to all generations.”
Both these proclamations, as I may call them, end alike with an assurance of the perpetuity of God's righteousness and his salvation; and therefore we put them together, both being designed for the comfort of God's people. Observe, I. Who they are to whom this comfort belongs: "My people, and my nation, that I have set apart for myself, that own me and are owned...
Commenting on Isaiah 51:4-8
For the moth shall eat them up like a garment,.... Either these reproaches, or the persons that reproach; as a garment is eaten by the moth, secretly, slowly, surely, and at last completely, so that it becomes utterly good for nothing; so secret, gradual, sure and certain, complete and perfect, will be the ruin and destruction of the enemies of Christ and his people: and...
(See on Isa 50:9; Job 4:18-20). Not that the moth eats men up, but they shall be destroyed by as insignificant instrumentality as the moth that eats a garment.