3 I will harden Pharaoh’s heart, and multiply my signs and my wonders in the land of Egypt.
4 But Pharaoh will not listen to you, and I will lay my hand on Egypt, and bring out my armies, my people the children of Israel, out of the land of Egypt by great judgements.
5 The Egyptians shall know that I am the Lord, when I stretch out my hand on Egypt, and bring out the children of Israel from amongst them.”
6 Moses and Aaron did so. As the Lord commanded them, so they did.
7 Moses was eighty years old, and Aaron eighty-three years old, when they spoke to Pharaoh.
8 The Lord spoke to Moses and to Aaron, saying,
9 “When Pharaoh speaks to you, saying, ‘Perform a miracle!’ then you shall tell Aaron, ‘Take your rod, and cast it down before Pharaoh, that it become a serpent.’”