Exodus 4:14-16 Christian Standard Bible (CSB)
14 Then the Lord’s anger burned against Moses, and he said, “Isn’t Aaron the Levite your brother? I know that he can speak well. And also, he is on his way now to meet you. He will rejoice when he sees you. 15 You will speak with him and tell him what to say. I will help both you and him to speak[a] and will teach you both what to do. 16 He will speak to the people for you. He will serve as a mouth for you, and you will serve as God to him.
Exodus 12:43 Christian Standard Bible (CSB)
43 The Lord said to Moses and Aaron, “This is the statute of the Passover: no foreigner may eat it.