7:5. And the Egyptians shall know that I am the Lord, who have stretched forth my hand upon Egypt, and have brought forth the children of Israel out of the midst of them.

7:6. And Moses and Aaron did as the Lord had commanded; so did they.

7:7. And Moses was eighty years old, and Aaron eighty-three, when they spoke to Pharao.

7:8. And the Lord said to Moses and Aaron:

7:9. When Pharao shall say to you, Shew signs; thou shalt say to Aaron: Take thy rod, and cast it down before Pharao, and it shall be turned into a serpent.

7:10. So Moses and Aaron went in unto Pharao, and did as the Lord had commanded. And Aaron took the rod before Pharao and his servants, and it was turned into a serpent.

7:11. And Pharao called the wise men and the magicians; and they also by Egyptian enchantments and certain secrets, did in like manner.

Magicians… Jannes, and Mambres, or Jambres, 2 Tim. 3.8.

7:12. And they every one cast down their rods, and they were turned into serpents: but Aaron's rod devoured their rods.

7:13. And Pharao's heart was hardened, and he did not hearken to them, as the Lord had commanded.