Deuteronomy 2:30
But Sihon king of Heshbon would not let us pass by him: for the LORD thy God hardened his spirit, and made his heart obstinate, that he might deliver him into thy hand, as appeareth this day.
Exodus 4:21
And the LORD said to Moses, When thou goest to return into Egypt, see that thou perform all those wonders before Pharaoh which I have put in thy hand: but I will harden his heart, that he shall not let the people go.
Numbers 21:23
And Sihon would not suffer Israel to pass through his border: but Sihon collected all his people, and went out against Israel into the wilderness: and he came to Jahaz, and fought against Israel:
Exodus 11:10
And Moses and Aaron did all these wonders before Pharaoh; and the LORD hardened Pharaoh's heart, so that he would not let the children of Israel depart from his land.
Joshua 11:19-20
There was not a city that made peace with the children of Israel, save the Hivites the inhabitants of Gibeon: all other they took in battle.
Judges 11:20
But Sihon trusted not Israel to pass through his border: but Sihon collected all his people, and encamped in Jahaz, and fought against Israel.
Isaiah 48:4
Because I knew that thou art obstinate, and thy neck is an iron sinew, and thy brow brass;
Romans 9:17-23
For the scripture saith to Pharaoh, Even for this same purpose have I raised thee up, that I might show my power in thee, and that my name might be declared throughout all the earth.