31 The voice of the LORD will shatter Assyria; with his rod he will strike them down.

Read Isaiah 30:31 Using Other Translations

For through the voice of the LORD shall the Assyrian be beaten down, which smote with a rod.
The Assyrians will be terror-stricken at the voice of the LORD, when he strikes with his rod.
At the LORD ’s command, the Assyrians will be shattered. He will strike them down with his royal scepter.