Isaiah 10:5-6, 15

Ho Assyrian, the rod of mine anger, the staff in whose hand is mine indignation! I will send him against a profane nation, and against the people of my wrath will I give him a charge, to take the spoil, and to take the prey, and to tread them down like the mire of the streets.

Shall the axe boast itself against him that heweth therewith? shall the saw magnify itself against him that wieldeth it? as if a rod should wield them that lift it up, or as if a staff should lift up him that is not wood.