Exodus 4:21

4:21 The Lord said to Moses, “When you go back to Egypt, see that you do before Pharaoh all the wonders I have put under your control. But I will harden his heart and he will not let the people go.

Exodus 7:13-14

7:13 Yet Pharaoh’s heart became hard, and he did not listen to them, just as the Lord had predicted.

The First Blow: Water to Blood

7:14 The Lord said to Moses, “Pharaoh’s heart is hard; he refuses to release the people.

Exodus 9:12

9:12 But the Lord hardened Pharaoh’s heart, and he did not listen to them, just as the Lord had predicted to Moses.

Exodus 11:10

11:10 So Moses and Aaron did all these wonders before Pharaoh, but the Lord hardened Pharaoh’s heart, and he did not release the Israelites from his land.

Deuteronomy 2:30

2:30 But King Sihon of Heshbon was unwilling to allow us to pass near him because the Lord our God had made him obstinate and stubborn so that he might deliver him over to you this very day.

Isaiah 6:9-10

6:9 He said, “Go and tell these people:

‘Listen continually, but don’t understand!

Look continually, but don’t perceive!’

6:10 Make the hearts of these people calloused;

make their ears deaf and their eyes blind!

Otherwise they might see with their eyes and hear with their ears,

their hearts might understand and they might repent and be healed.”

John 12:39-40

12:39 For this reason they could not believe, because again Isaiah said,

12:40 “He has blinded their eyes

and hardened their heart,

so that they would not see with their eyes

and understand with their heart,

and turn to me, and I would heal them.”

Romans 9:18

9:18 So then, God has mercy on whom he chooses to have mercy, and he hardens whom he chooses to harden.

Romans 9:2

9:2 I have great sorrow and unceasing anguish in my heart.

Romans 2:11-12

2:11 For there is no partiality with God. 2:12 For all who have sinned apart from the law will also perish apart from the law, and all who have sinned under the law will be judged by the law.