Then the Lord told Moses, “Pharaoh has not listened to you. Why? So that I could show my great power in Egypt.”
The Lord said to Moses, “Go to Pharaoh. I have made him and his officials stubborn. I did this so I could show them my powerful miracles.
“But I know that the king of Egypt will not let you go. Only a great power will force him to let you go.
While Moses was traveling back to Egypt, God spoke to him. God said, “When you talk to Pharaoh remember to show him all the miracles that I have given you the power to do. But I will cause Pharaoh to be very stubborn. He will not let the people go.