And the Lord said to Moses: "Enter to Pharaoh. For I have hardened his heart, and that of his servants, so that I may accomplish these, my signs, in him,
I have said to you: Release my son, so that he may serve me. And you were not willing to release him. Behold, I will put to death your firstborn son.' "
Go to him in the morning; behold, he will go out to the waters. And you will stand to meet him above the bank of the river. And you will take, in your hand, the staff that was turned into a serpent.
And Pharaoh sent to see; neither was there anything dead of those things that Israel possessed. And the heart of Pharaoh was hardened, and he did not release the people.
Then why have this people in Jerusalem turned away with a contentious loathing? They have taken hold of what is false, and they are not willing to return.
And they set their heart like the hardest stone, so that they would not hear the law and the words that the Lord of hosts has sent with his Spirit by the hand of the former prophets. And so a great indignation came from Lord of hosts.
And Sihon, the king of Heshbon, was not willing to grant passage to us. For the Lord your God had hardened his spirit, and had fastened his heart, so that he would be delivered into your hands, just as you now see.
Be careful not to reject the One who is speaking. For if those who rejected him who was speaking upon the earth were not able to escape, so much more we who might turn away from the One who is speaking to us from heaven.
Why have you hardened your hearts, just as Egypt and Pharaoh hardened their hearts? After he was struck, did he not then release them, and they went away?