Therefore God has mercy on whom He wants to have mercy, and He hardens whom He wants to harden.

Exodus 4:21
The LORD instructed Moses, "When you go back to Egypt, see that you perform before Pharaoh all the wonders that I have put within your power. But I will harden his heart so that he will not let the people go.

Exodus 7:3
But I will harden Pharaoh's heart, and though I will multiply My signs and wonders in the land of Egypt,

Exodus 9:12
But the LORD hardened Pharaoh's heart, and he would not listen to them, just as the LORD had said to Moses.

Exodus 10:1
Then the LORD said to Moses, "Go to Pharaoh, for I have hardened his heart and the hearts of his officials, that I may perform these miraculous signs of Mine among them,

Exodus 10:20
But the LORD hardened Pharaoh's heart, and he would not let the Israelites go.

Exodus 10:27
But the LORD hardened Pharaoh's heart, and he was unwilling to let them go.

Exodus 11:10
Moses and Aaron did all these wonders before Pharaoh, but the LORD hardened Pharaoh's heart so that he would not let the Israelites go out of his land.

Exodus 14:4
And I will harden Pharaoh's heart so that he will pursue them. But I will gain honor by means of Pharaoh and all his army, and the Egyptians will know that I am the LORD." So this is what the Israelites did.

Exodus 14:17
And I will harden the hearts of the Egyptians so that they will go in after them. Then I will gain honor by means of Pharaoh and all his army and chariots and horsemen.

Deuteronomy 2:30
But Sihon king of Heshbon would not let us pass through, for the LORD your God had made his spirit stubborn and his heart obstinate, that He might deliver him into your hand, as is the case this day.

Joshua 11:20
For it was of the LORD to harden their hearts to engage Israel in battle, so that they would be set apart for destruction and would receive no mercy, being annihilated as the LORD had commanded Moses.

John 12:40
"He has blinded their eyes and hardened their hearts, so that they cannot see with their eyes, and understand with their hearts, and turn, and I would heal them."

Romans 11:7
What then? What Israel was seeking, it failed to obtain, but the elect did. The others were hardened,

Romans 11:25
I do not want you to be ignorant of this mystery, brothers, so that you will not be conceited: A hardening in part has come to Israel, until the full number of the Gentiles has come in.

Therefore has he mercy on whom he will have mercy, and whom he will he hardens.