KJV: And Pharaoh sent, and, behold, there was not one of the cattle of the Israelites dead. And the heart of Pharaoh was hardened, and he did not let the people go.
NASB: Pharaoh sent, and behold, there was not even one of the livestock of Israel dead. But the heart of Pharaoh was hardened, and he did not let the people go.
KJV: And the LORD said unto Moses, Go in unto Pharaoh: for I have hardened his heart, and the heart of his servants, that I might shew these my signs before him:
NASB: Then the LORD said to Moses, "Go to Pharaoh, for I have hardened his heart and the heart of his servants, that I may perform these signs of Mine among them,
KJV: And Moses and Aaron did all these wonders before Pharaoh: and the LORD hardened Pharaoh's heart, so that he would not let the children of Israel go out of his land.
NASB: Moses and Aaron performed all these wonders before Pharaoh; yet the LORD hardened Pharaoh's heart, and he did not let the sons of Israel go out of his land.
KJV: And I will harden Pharaoh's heart, that he shall follow after them; and I will be honoured upon Pharaoh, and upon all his host; that the Egyptians may know that I am the LORD. And they did so.
NASB: "Thus I will harden Pharaoh's heart, and he will chase after them; and I will be honored through Pharaoh and all his army, and the Egyptians will know that I am the LORD." And they did so.