The rod of God— It is so called, because it was, in the hand of Moses, the symbol of Divine Power, and the instrument by which he wrought all the prodigies that signalized his ministry.
Related Commentaries of Exodus 4:20
Exodus 4:20
20 And Moses took his wife and his sons, and set them upon an ass, and he returned to the land of Egypt: and Moses took the rod of God in his hand.