Exodus 4:5

that they may believe that the Lord God of their fathers, the God of Abraham, the God of Isaac, and the God of Jacob, hath appeared unto thee. The simple shepherd's staff, according to the will of God, became the instrument by which Pharaoh and his land were punished, for the miracle showed that God would deliver His people from the hostile power which was holding it captive. Moses received the commission, the power. to overcome the might, the wickedness of Satan, and this fact could not be hidden from the eyes of the children of Israel: they were bound to acknowledge his call.