Exodus 4:21

“But I will harden Pharaoh’s heart with stiffness that I may multiply My signs and My wonders in the land of Egypt.

Yet Pharaoh’s heart was hardened with strength, and he did not listen to them, as Yahweh had spoken.

Then Pharaoh hardened his heart with firmness this time also, and he did not let the people go.

And Yahweh hardened Pharaoh’s heart with strength, and he did not listen to them, just as Yahweh had spoken to Moses.

And Pharaoh’s heart was hardened with strength, and he did not let the sons of Israel go, just as Yahweh had spoken by the hand of Moses.

Then Yahweh said to Moses, “Come to Pharaoh, for I have hardened his heart and the heart of his servants with firmness, that I may set these signs of Mine among them,

But Yahweh hardened Pharaoh’s heart with strength, and he did not let the sons of Israel go.

But Yahweh hardened Pharaoh’s heart with strength, and he was not willing to let them go.

Now Moses and Aaron did all these miraculous wonders before Pharaoh; yet Yahweh hardened Pharaoh’s heart with strength, and he did not let the sons of Israel go out of his land.

“Thus I will harden Pharaoh’s heart with strength, and he will pursue them; and I will be glorified through Pharaoh and all his army, so that the Egyptians will know that I am Yahweh.” And they did so.

“But Sihon king of Heshbon was not willing for us to pass through his land, for Yahweh your God stiffened his spirit and made his heart obstinate, in order to give him over into your hand, as he is today.

When He performed His signs in Egypt And His miracles in the field of Zoan,

He turned their heart to hate His people, To deal craftily with His slaves.

So then He has mercy on whom He desires, and He hardens whom He desires.