Isaiah 10:5-6, 12

Woe to Assyria, the rod of my anger; the staff in their hands is my fury! Against a godless nation I send him, and against the people of my wrath I command him, to take spoil and seize plunder, and to tread them down like the mire of the streets.

When the Lord has finished all his work on Mount Zion and on Jerusalem, he will punish the speech of the arrogant heart of the king of Assyria and the boastful look in his eyes.