Exodus 14:8 The LORD hardened the heart of Pharaoh, king of Egypt, and he chased after the sons of Israel as the sons of Israel were going out boldly.

Deuteronomy 2:30 "But Sihon king of Heshbon was not willing for us to pass through his land; for the LORD your God hardened his spirit and made his heart obstinate, in order to deliver him into your hand, as he is today.

Isaiah 6:10 "Render the hearts of this people insensitive, Their ears dull, And their eyes dim, Otherwise they might see with their eyes, Hear with their ears, Understand with their hearts, And return and be healed." (NASB ©1995)