2 Chronicles 36:13 And he also rebelled against king Nebuchadnezzar, who had made him swear by God: but he stiffened his neck, and hardened his heart from turning unto the Lord God of Israel. MC VC

Psalm 95:8 Harden not your heart, as in the provocation, and as in the day of temptation in the wilderness: MC VC

Proverbs 28:14 Happy is the man that feareth alway: but he that hardeneth his heart shall fall into mischief. 9 I MC VC