1 Samuel 6:6
Why do you make your hearts hard, like the hearts of Pharaoh and the Egyptians? When he had made sport of them, did they not let the people go, and they went away?
Exodus 7:13
But Pharaoh's heart was made hard, and he did not give ear to them, as the Lord had said.
Exodus 8:15
But when Pharaoh saw that there was peace for a time, he made his heart hard and did not give ear to them, as the Lord had said.
Exodus 14:17
And I will make the heart of the Egyptians hard, and they will go in after them: and I will be honoured over Pharaoh and over his army, his war-carriages, and his horsemen.
Exodus 9:34
But when Pharaoh saw that the rain and the ice-storm and the thunders were ended, he went on sinning, and made his heart hard, he and his servants.
Exodus 8:32
But again Pharaoh made his heart hard and did not let the people go.
Exodus 9:16
But, for this very reason, I have kept you from destruction, to make clear to you my power, and so that my name may be honoured through all the earth.
Exodus 10:3
Then Moses and Aaron went in to Pharaoh, and said to him, This is what the Lord, the God of the Hebrews, says: How long will you be lifted up in your pride before me? let my people go so that they may give me worship.
Exodus 12:31-33
And he sent for Moses and Aaron by night, and said, Get up and go out from among my people, you and the children of Israel; go and give worship to the Lord as you have said.
Exodus 14:23
Then the Egyptians went after them into the middle of the sea, all Pharaoh's horses and his war-carriages and his horsemen.
Exodus 15:14-16
Hearing of you the peoples were shaking in fear: the people of Philistia were gripped with pain.
Job 9:4
He is wise in heart and great in strength: who ever made his face hard against him, and any good came of it?
Psalm 95:8
Let not your hearts be hard, as at Meribah, as in the day of Massah in the waste land;
Romans 2:5
But by your hard and unchanged heart you are storing up wrath for yourself in the day of the revelation of God's judging in righteousness;
Hebrews 3:13
But give comfort to one another every day as long as it is still Today; so that no one among you may be made hard by the deceit of sin: