2 Kings 16:5-7 provides the parallel historical account of Ahaz sending to Assyria for help during the siege, directly matching this verse.

Isaiah 7:1-9 describes the same siege and Isaiah's rebuke to Ahaz, giving the prophetic context that makes Ahaz's plea to Assyria a failure of faith.

Isaiah 7:17 is the prophecy that the Lord will bring the king of Assyria as judgment — the direct consequence of Ahaz's action in this verse.

Jeremiah 2:36 explicitly recalls Judah's disappointment with Assyria, directly referring to Ahaz's failed alliance.

Hosea 5:13 directly describes Judah and Israel turning to Assyria for help, mirroring Ahaz's action and its futility.