Exodus 4:27-30

27Now the Lord had said to Aaron, “Go out into the wilderness to meet Moses.” So Aaron went and met Moses at the mountain of God, and he embraced him.

28Moses then told Aaron everything the Lord had commanded him to say. And he told him about the miraculous signs the Lord had commanded him to perform.

29Then Moses and Aaron returned to Egypt and called all the elders of Israel together.

30Aaron told them everything the Lord had told Moses, and Moses performed the miraculous signs as they watched.