'Staff' 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 who commands armies is about to beat them with a whip, similar to the way he struck down Midian at the rock of Oreb. He will use his staff against the sea, lifting it up as he did in Egypt.

Look, you must be trusting in Egypt, that splintered reed staff. If someone leans on it for support, it punctures his hand and wounds him. That is what Pharaoh king of Egypt does to all who trust in him!