When Moses was commissioned to appear before Pharaoh and to bring the Israelites out of Egypt, Jehovah appointed Aaron to accompany Moses and speak representatively for him.
فعندما فوض يهوه الى موسى ان يمثل امام فرعون ويُخرج الاسرائيليين من مصر ،‏ عيّن هارون مرافقا له ومتكلما عنه .‏