Exodus 4:28-30

Young's Literal Translation

²⁸ and Moses declareth to Aaron all the words of Jehovah with which He hath sent him, and all the signs with which He hath charged him.

²⁹ And Moses goeth -- Aaron also -- and they gather all the elders of the sons of Israel,

³⁰ and Aaron speaketh all the words which Jehovah hath spoken unto Moses, and doth the signs before the eyes of the people;