Deuteronomy 2:30
'And Sihon king of Heshbon hath not been willing to let us pass over by him, for Jehovah thy God hath hardened his spirit, and strengthened his heart, so as to give him into thy hand as at this day.
Exodus 4:21
And Jehovah saith unto Moses, 'In thy going to turn back to Egypt, see -- all the wonders which I have put in thy hand -- that thou hast done them before Pharaoh, and I -- I strengthen his heart, and he doth not send the people away;
Numbers 21:23
And Sihon hath not suffered Israel to pass through his border, and Sihon gathereth all his people, and cometh out to meet Israel into the wilderness, and cometh in to Jahaz, and fighteth against Israel.
Exodus 11:10
and Moses and Aaron have done all these wonders before Pharaoh, and Jehovah strengtheneth Pharaoh's heart, and he hath not sent the sons of Israel out of his land.
Joshua 11:19-20
there hath not been a city which made peace with the sons of Israel save the Hivite, inhabitants of Gibeon; the whole they have taken in battle;
Judges 11:20
and Sihon hath not trusted Israel to pass over through his border, and Sihon gathereth all his people, and they encamp in Jahaz, and fight with Israel;
Isaiah 48:4
From my knowing that thou art obstinate, And a sinew of iron thy neck, And thy forehead brass,
Romans 9:17-23
for the Writing saith to Pharaoh -- 'For this very thing I did raise thee up, that I might shew in thee My power, and that My name might be declared in all the land;'