'Harden' in the Bible

The Lord said to Moses, “When you return to Egypt, see that you perform before Pharaoh all the wonders (miracles) which I have put in your hand, but I will harden his heart and make him stubborn so that he will not let the people go.

I will harden (make stubborn, defiant) Pharaoh’s heart, so that he will pursue them; and I will be glorified and honored through Pharaoh and all his army, and the Egyptians shall know [without any doubt] and acknowledge that I am the Lord.” And they did so.

As for Me, hear this: I will harden the hearts of the Egyptians, and they will go in [the sea] after them; and I will be glorified and honored through Pharaoh and all his army, and his war-chariots and his horsemen.

“If there is a poor man among you, one of your fellow Israelites, in any of your cities in the land that the Lord your God is giving you, you shall not be heartless, nor close-fisted with your poor brother;

For it was [the purpose] of the Lord to harden their hearts, to meet Israel in battle so that Israel would utterly destroy them, that they would receive no mercy, but that Israel would destroy them, just as the Lord had commanded Moses.

Why then do you harden your hearts [allowing pride to cause your downfall] just as the Egyptians and Pharaoh hardened their hearts? When He had severely dealt with them and mocked them, did they not allow the people [of Israel] to go, and they departed?

“These ten times you have insulted me;You are not ashamed to wrong me [and harden your hearts against me].

Do not harden your hearts and become spiritually dull as at Meribah [the place of strife],And as at Massah [the place of testing] in the wilderness,

‘Do not fear [anything], for I am with you;Do not be afraid, for I am your God.I will strengthen you, be assured I will help you;I will certainly take hold of you with My righteous right hand [a hand of justice, of power, of victory, of salvation].’