Moses and Aaron did all these great miracles in front of the king. But the Lord made him stubborn, and the king would not let the Israelites leave his country.
The king of Egypt was stubborn and refused to let us leave. But the Lord killed every firstborn male in Egypt, both human and animal. That is why I sacrifice every firstborn male animal to the Lord, and that is why I buy back each of my firstborn sons from the Lord.’
The Lord said to Moses, “When you get back to Egypt, do all the miracles I have given you the power to do. Show them to the king of Egypt. But I will make the king very stubborn, and he will not let the people go.
Then the Lord said to Moses, “Now you will see what I will do to the king of Egypt. I will use my great power against him, and he will let my people go. Because of my power, he will force them out of his country.”
The king said, “I will let you go so that you may offer sacrifices to the Lord your God in the desert, but you must not go very far away. Now go and pray for me.”
The king sent people to see what had happened to the animals of Israel, and they found that not one of them had died. But the king was still stubborn and did not let the people go.