Exodus 7:7-9

New International Version - UK

⁷ Moses was eighty years old and Aaron eighty-three when they spoke to Pharaoh.

Aaron’s staff becomes a snake

⁸ The Lord said to Moses and Aaron, ⁹ ‘When Pharaoh says to you, “Perform a miracle,” then say to Aaron, “Take your staff and throw it down before Pharaoh,” and it will become a snake.’