4:20 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 {h} rod of God in his hand.
(h) By which he wrought the miracles.
4:20 The rod of God - His shepherd's crook so called, as it was God's instrument in so many glorious works.
4:18-23 After God had appeared in the bush, he often spake to Moses. Pharaoh had hardened his own heart against the groans and cries of the oppressed Israelites; and now God, in the way of righteous judgment, hardens his heart against the teaching of the miracles, and the terror of the plagues. But whether Pharaoh will hear, or whether he will forbear, Moses must tell him, Thus saith the Lord. He must demand a discharge for Israel, Let my son go; not only my servant, whom thou hast no right to detain, but my son. It is my son that serves me, and therefore must be spared, must be pleaded for. In case of refusal I will slay thy son, even thy first-born. As men deal with God's people, let them expect so to be dealt with.