Isaiah 36:19 shows that Samaria fell to Assyria—providing the precedent for the boast in Isaiah 10:11 that Jerusalem will share its fate.

Isaiah 36:20 directly repeats the argument: no god has saved any land from Assyria, so why would the Lord save Jerusalem? Strong parallel.

Isaiah 37:10-13 records Sennacherib's letter making the same argument—that no nation's god has delivered them, just as Isaiah 10:11 boasts.

2 Kings 17:3 records the actual submission of Samaria to Assyria, providing the historical event Isaiah 10:11 references as the model for Jerusalem.

2 Kings 18:11 describes the deportation of Israel by Assyria, confirming the fate of Samaria that the Assyrian king boasts about.

2 Chronicles 32:14 records the same boastful rhetoric of the Assyrian king, directly paralleling the mindset expressed in Isaiah 10:11.

Hosea 8:11 reveals why Samaria's idols brought judgment — Ephraim's multiplied altars became sin. This explains the cause behind the event Isaiah 10:11 cites.