'Scepter' in the Bible

Does an ax exalt itself over the one who wields it, or a saw magnify itself over the one who cuts with it? As if a scepter should brandish the one who raises it, or a staff should lift up what is not made of wood!

The Lord has broken the staff of the wicked,the scepter of the rulers.

Indeed, the Assyrians will be shattered at the LORD's voice, when he strikes them with his scepter.