'Hardened' in the Bible

But they, our fathers, dealt proudly, and hardened their neck, and hearkened not to thy commandments,

and refused to obey, neither were they mindful of thy wonders which thou hadst done among them; but hardened their neck, and in their rebellion made a captain to return to their bondage. But thou art a +God ready to forgive, gracious and merciful, slow to anger and of great loving-kindness, and thou forsookest them not.

And thou testifiedst against them, that thou mightest bring them again unto thy law; but they dealt proudly, and hearkened not unto thy commandments, but sinned against thine ordinances (which if a man do, he shall live in them); and they withdrew the shoulder, and hardened their neck, and would not hear.