Charles Ellicott Commentary Isaiah 59:6

"Their webs shall not become garments, neither shall they cover themselves with their works: their works are works of iniquity, and the act of violence is in their hands." — Isaiah 59:6 (ASV)

Their webs shall not become garments. — See the same figure in Isaiah 30:1. The point of the comparison lies chiefly in the uselessness of the spider’s webs, but the second clause also emphasizes the fact that the only purpose which the webs serve is one of mischief. They may catch flies, they cannot clothe men.