Exodus 4:17

15You shall speak to him, and put the words in his mouth. I will be with your mouth, and with his mouth, and will teach you what you shall do.

16He will be your spokesman to the people. It will happen that he will be to you a mouth, and you will be to him as God.

17You shall take this rod in your hand, with which you shall do the signs.”

18Moses went and returned to Jethro his father-in-law, and said to him, “Please let me go and return to my brothers who are in Egypt, and see whether they are still alive.” Jethro said to Moses, “Go in peace.”

19The LORD said to Moses in Midian, “Go, return into Egypt; for all the men who sought your life are dead.”