(29) and יהוה said to Moses, “I am יהוה; speak to Pharaoh king of Egypt all that I will tell you,” (30) Moses appealed to יהוה, saying, “See, I get tongue-tied; how then should Pharaoh heed me!” (1) יהוה replied to Moses, “See, I place you in the role of God to Pharaoh, with your brother Aaron as your prophet. (2) You shall repeat all that I command you, and your brother Aaron shall speak to Pharaoh to let the Israelites depart from his land. (3) But I will harden Pharaoh’s heart, that I may multiply My signs and marvels in the land of Egypt. (4) When Pharaoh does not heed you, I will lay My hand upon Egypt and deliver My ranks, My people the Israelites, from the land of Egypt with extraordinary chastisements. (5) And the Egyptians shall know that I am יהוה, when I stretch out My hand over Egypt and bring out the Israelites from their midst.” (6) This Moses and Aaron did; as יהוה commanded them, so they did. (7) Moses was eighty years old and Aaron eighty-three, when they made their demand on Pharaoh.