And Jehovah said to Moses, Go in to Pharaoh, for I have made his heart heavy and the heart of his servants, so that I may set these signs of Mine in their midst;
And Moses and Aaron did all these miraculous signs before Pharaoh. And Jehovah hardened the heart of Pharaoh, and he did not send away the sons of Israel from his land.
And Jehovah said to Moses, As you go to return to Egypt, see all the wonders which I have put in your hand, and do them before Pharaoh. And I will make strong his heart, and he will not send the people away.
And Pharaoh will not listen to you. And I will put My hand on Egypt, and will bring My armies, My people, the sons of Israel, from the land of Egypt with great judgments.
“He has blinded their eyes” and “has hardened their heart,” “that they might not see with the eyes” and “understand with the heart,” “and turn back,” “and I should heal them.” Isa. 6:10
For it was of Jehovah to harden their hearts, so that they should come against Israel in battle, so that they might be destroyed, so that they might have no favor, but that He might destroy them, as Jehovah commanded Moses.