'Rod' in the Bible

Thou shalt break them with a rod of iron; Thou shalt dash them in pieces like a potter's vessel.

Yea, thou I walk through the valley of the shadow of death, I will fear no evil; for thou art with me; Thy rod and thy staff, they comfort me.

Then will I visit their transgression with the rod, And their iniquity with stripes.

Jehovah will send forth the rod of thy strength out of Zion: Rule thou in the midst of thine enemies.