Exodus 7:7-9

New Living Translation

⁷ Moses was eighty years old, and Aaron was eighty-three when they made their demands to Pharaoh.

⁸ Then the Lord said to Moses and Aaron, ⁹ “Pharaoh will demand, ‘Show me a miracle.’ When he does this, say to Aaron, ‘Take your staff and throw it down in front of Pharaoh, and it will become a serpent.^[a]’”