Exodus 4:14-17

The LORD became angry with Moses and said, “Your brother Aaron, from the family of Levi, is a skilled speaker. He is already coming to meet you, and he will be happy when he sees you. You will speak to Aaron and tell him what to say. I will help both of you to speak and will teach you what to do. Aaron will speak to the people for you. You will tell him what God says, and he will speak for you. Take your walking stick with you, and use it to do the miracles.”