Whatever were the histories in the siege of Judah, as this scripture records, I stay not to inquire; but I think, without violence to the expressions, by the uncovering of Judah, and the breaches of the city of David, we may very safely suppose, it had reference to somewhat more than the mere events themselves, carried on in the siege. May it not be in reference (for I humbly ask the question) to Judah's being made sensible of her hypocrisy and deceitfulness, with her God; by which a breach in the covenant is made, and the Lord now resents it? Judah had sinned, but yet put on a covering of piety; and in her distress, looked to the number of her troops, and the strength of her inhabitants; but lifted not her eyes for help to the Lord, her Maker. Then, saith the Lord, this covering shall be taken off, and she shall be seen as she is. See another beautiful expostulation to this effect, Jeremiah 2:19.
Related Commentaries of Isaiah 22:8
Isaiah 22:8-11
8 And he discovered the covering of Judah, and thou didst look in that day to the armour of the house of the forest.
9 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.
10 And ye have numbered the houses of Jerusalem, and the houses have ye broken down to fortify the wall.
11 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.