Then the Lord said to Moses, “Go to Pharaoh, for I have hardened his heart and the heart of his servants, that I might show these signs of Mine before him,
So Moses and Aaron did all these wonders before Pharaoh, and the Lord hardened Pharaoh’s heart, and he would not let the Israelites go out of his land.
The Lord said to Moses, “When you go to return into Egypt, see that you do all those wonders before Pharaoh, which I have put in your hand, but I will harden his heart, so that he shall not let the people go.
Nevertheless, Pharaoh will not listen to you, so that I may lay My hand upon Egypt and bring forth My armies and My people, the Israelites, out of the land of Egypt by great judgments.
And Pharaoh sent, and behold, not one of the livestock of the Israelites was dead. But the heart of Pharaoh was hardened, so that he did not let the people go.
“He has blinded their eyes and hardened their hearts, lest they should see with their eyes and perceive with their hearts and turn, and I would heal them.”
because the Lord hardened their hearts to engage Israel in battle. They destroyed them without mercy, to put them to death, as the Lord had commanded Moses.