Violence shall no more... — Following the thought of the previous verse, we see in the words a picture of freedom from internal misgovernment rather than from external invasion.
Thou shalt call thy walls Salvation... The idea, almost the very phrase, has met us before in Isaiah 26:1. They probably found a starting-point in the Eastern practice of giving to the walls of a city names that implied a consecration. Thus the walls of Babylon were named Imgur Bel and Nimetti Belkit (Records of the Past, v. 124, 125).