Deuteronomy 2:30
But Sihon king of Heshbon would not let us pass by him; for Jehovah thy God hardened his spirit, and made his heart obstinate, that he might deliver him into thy hand, as at this day.
Exodus 4:21
And Jehovah said unto Moses, When thou goest back into Egypt, see that thou do before Pharaoh all the wonders which I have put in thy hand: but I will harden his heart and he will not let the people go.
Numbers 21:23
And Sihon would not suffer Israel to pass through his border: but Sihon gathered all his people together, and went out against Israel into the wilderness, and came to Jahaz; and he fought against Israel.
Exodus 11:10
And Moses and Aaron did all these wonders before Pharaoh: and Jehovah hardened Pharaoh's heart, and he did not let the children of Israel go out of 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: they took all in battle.
Judges 11:20
But Sihon trusted not Israel to pass through his border; but Sihon gathered all his people together, 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 unto Pharaoh, For this very purpose did I raise thee up, that I might show in thee my power, and that my name might be published abroad in all the earth.