'Rod' in the Bible

and he shall shepherd and rule them with a rod of iron, as the earthen pots are broken in pieces, as I also have received authority [and power to rule them] from My Father;

Then there was given to me a measuring rod like a staff; and someone said, “Rise and measure the temple of God and the altar [of incense], and [count] those who worship in it.

From His mouth comes a sharp sword (His word) with which He may strike down the nations, and He will rule them with a rod of iron; and He will tread the wine press of the fierce wrath of God, the Almighty [in judgment of the rebellious world].

The one who was speaking with me had a gold measuring rod to measure the city, and its gates and its wall.