Isaiah 22:8-11. “And he discovered the covering of Judah, and thou didst look in the day to the armour of the house of the forest. Ye have seen also the breaches of the city of David, that they are many: and ye gathered together the waters of the lower pool. And ye have numbered the houses of Jerusalem, and the houses have ye broken down to fortify the wall. Ye made also a ditch between the two walls for the water of the old pool; but, ye have not looked unto the Maker thereof, neither had respect unto Him that fashioned it long ago.
The once-lovely city of Jerusalem was about to be destroyed. The people made some frantic last-minute efforts to prepare, but because they did not beseech God for His protection, their efforts were in vain.
He, in the beginning of verse 8, is the King of Assyria. His uncovering of Judah was his complete disrespect. He destroyed their safety, their pride; and he heaped insults on the people. The “house of the forest” would seem to have been an arsenal or armory in which weapons were stored.
Thou in the same verse is the King of Judah, who looked to the armor in the house in the forest as a last resort. He saw how easily the city could be breached, and he tried to keep the enemy from having access to the water that supplied Jerusalem. He had counted all the dwellings in the city, and broke some of them down to use the bricks for reinforcing the walls around the city. .
Hezekiah was King of Judah during this period, and God had blessed his reign because he did try to remain close to God, in spite of the carelessness of his people. When we depend only on our own efforts and neglect to trust in God, we are doomed to failure.