'Rod' in the Bible

You shall break them with a rod of iron. You shall dash them in pieces like a potter's vessel."

Even though I walk through the valley of the shadow of death, I will fear no evil, for you are with me. Your rod and your staff, they comfort me.

then I will punish their sin with the rod, and their iniquity with stripes.

Yahweh will send forth the rod of your strength out of Zion. Rule in the midst of your enemies.