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,
Go to Pharaoh in the morning as he goes out to the water, and you shall stand by the river’s bank to meet him. You must take the rod which was turned to a serpent in your hand.
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.
They made their hearts hard like a diamond so as not to hear the instruction and words that the Lord of Hosts sent by His Spirit through the former prophets, and there was great anger from the Lord of Hosts.
But Sihon, king of Heshbon, would not let us pass by him, for the Lord your God hardened his spirit and made his heart obstinate, so that He might deliver him into your hand as he is to this day.
See that you do not refuse Him who is speaking. For if they did not escape when they refused Him who spoke on earth, much less shall we escape if we turn away from Him who speaks from heaven.
Why then do you harden your hearts, as the Egyptians and Pharaoh hardened their hearts? When He dealt severely with them, did they not let the people go, and they departed?