The burden of the valley of vision. What aileth thee now, that thou art wholly gone up to the housetops? Thou that art full of stirs, a tumultuous city, a joyous city: thy slain men are not slain with the sword, nor dead in battle. All thy rulers are fled together, they are bound by the archers: all that are found in thee are bound together, which have fled from far. Therefore said I, Look away from me; I will weep bitterly, labour not to comfort me, because of the spoiling of the daughter of my people. For it is a day of trouble, and of treading down, and of perplexity by the Lord GOD of hosts in the valley of vision, breaking down the walls, and of crying to the mountains.
The valley of vision referred to Jerusalem. The city was in siege, the people were milling about on the housetops to see the enemy at the gates, the streets were littered with victims of plague, and the rulers and people, who attempted to escape, were captured without a struggle. Isaiah himself was distressed as he saw the threatened judgment of God on Jerusalem.