Isaiah 22:8
And he discovered the covering of Judah, and thou didst look in that day to the armour of the house of the forest.
Cross-reference
Isaiah 36:1-3 narrates the actual Assyrian siege when the covering of Judah was removed, fulfilling the prophetic situation described here.
1 Kings 7:2 describes Solomon's House of the Forest of Lebanon, the very building where the weapons mentioned here were stored.
1 Kings 10:17 mentions gold shields kept in the House of the Forest, specifying the weapons Judah relied on in this verse.
In 1 Kings 14:28, the same House of the Forest armory is where Rehoboam's shields were kept, showing the military reliance Isaiah condemns.
Hosea 8:14 condemns Judah's fortified cities as a sign of forgetting God, directly echoing Isaiah's critique of trusting in weapons and walls.
1 Kings 14:27 tells how Rehoboam made bronze shields for the same armory, showing the fate of Judah's weapons after foreign invasion.