Joshua 11:20

And Yahweh said to Moses, “When you go to return to Egypt, see to it that all the miraculous wonders which I have put in your hand, that you do them before Pharaoh; but as for Me, I will harden his heart with strength so that he will 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.

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,

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.

“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.

However, his father and mother did not know that it was of Yahweh, for He was seeking an occasion against the Philistines. Now at that time the Philistines were ruling over Israel.

“If one man sins against another, God will mediate for him; but if a man sins against Yahweh, who can pray for him?” But they would not listen to the voice of their father, for Yahweh desired to put them to death.

He also drove out the nations before them And apportioned them for an inheritance by measurement, And made the tribes of Israel dwell in their tents.

He gave them also the lands of the nations, That they might take possession of the fruit of the peoples’ labor,

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