Then the Lord said to Moses, “Go to Pharaoh, for I have hardened his heart and the heart of his officials, in order that I may show these signs of mine among them
Go to Pharaoh in the morning, as he is going out to the water; stand by at the bank of the Nile to meet him, and take in your hand the staff that was turned into a snake.
Pharaoh inquired and found that not even one of the Israelites’ livestock had died. But the heart of Pharaoh was hardened, and he would not let the people go.
They made their hearts adamant in order not to hear the law and the words that the Lord of hosts had sent by his spirit through the former prophets. Therefore great wrath came from the Lord of hosts.
But King Sihon of Heshbon was not willing to let us pass through, for the Lord your God had hardened his spirit and made his heart defiant in order to hand him over to you, as he has now done.
See that you do not refuse the one who is speaking, for if they did not escape when they refused the one who warned them on earth, how much less will we escape if we reject the one who warns from heaven!
Why should you harden your hearts as the Egyptians and Pharaoh hardened their hearts? After he had made fools of them, did they not let the people go, and they departed?