Harden your hearts = freewill. Eve exercised her freewill when she turned from the LORD.
2 Kings 17:13-14
Yet the LORD warned Israel and Judah through all His prophets and every seer, saying, "Turn from your evil ways and keep My commandments, My statutes according to all the law which I commanded your fathers, and which I sent to you through My servants the prophets." However, they did not listen, but stiffened their neck like their fathers, who did not believe in the LORD their God.
2 Chronicles 30:8
"Now do not stiffen your neck like your fathers, but yield to the LORD and enter His sanctuary which He has consecrated forever, and serve the LORD your God, that His burning anger may turn away from you.
2 Chronicles 36:15-16
The LORD, the God of their fathers, sent word to them again and again by His messengers, because He had compassion on His people and on His dwelling place; but they continually mocked the messengers of God, despised His words and scoffed at His prophets, until the wrath of the LORD arose against His people, until there was no remedy.
Nehemiah 9:16-18
"But they, our fathers, acted arrogantly; They became stubborn and would not listen to Your commandments. "They refused to listen, And did not remember Your wondrous deeds which You had performed among them; So they became stubborn and appointed a leader to return to their slavery in Egypt But You are a God of forgiveness, Gracious and compassionate, Slow to anger and abounding in lovingkindness; And You did not forsake them. "Even when they made for themselves A calf of molten metal And said, 'This is your God Who brought you up from Egypt,' And committed great blasphemies,
Psalm 95:8-11
Do not harden your hearts, as at Meribah, As in the day of Massah in the wilderness, "When your fathers tested Me, They tried Me, though they had seen My work. "For forty years I loathed that generation, And said they are a people who err in their heart, And they do not know My ways.
Jeremiah 7:25-26
"Since the day that your fathers came out of the land of Egypt until this day, I have sent you all My servants the prophets, daily rising early and sending them. "Yet they did not listen to Me or incline their ear, but stiffened their neck; they did more evil than their fathers.
Jeremiah 19:14-15
Then Jeremiah came from Topheth, where the LORD had sent him to prophesy; and he stood in the court of the LORD'S house and said to all the people: "Thus says the LORD of hosts, the God of Israel, 'Behold, I am about to bring on this city and all its towns the entire calamity that I have declared against it, because they have stiffened their necks so as not to heed My words.'"
Ezekiel 2:3-4
Then He said to me, "Son of man, I am sending you to the sons of Israel, to a rebellious people who have rebelled against Me; they and their fathers have transgressed against Me to this very day. "I am sending you to them who are stubborn and obstinate children, and you shall say to them, 'Thus says the Lord GOD.'
Acts 7:51-52
"You men who are stiff-necked and uncircumcised in heart and ears are always resisting the Holy Spirit; you are doing just as your fathers did. "Which one of the prophets did your fathers not persecute? They killed those who had previously announced the coming of the Righteous One, whose betrayers and murderers you have now become;
Acts 19:8-9
And he entered the synagogue and continued speaking out boldly for three months, reasoning and persuading them about the kingdom of God. But when some were becoming hardened and disobedient, speaking evil of the Way before the people, he withdrew from them and took away the disciples, reasoning daily in the school of Tyrannus.
Hebrews 3:8
DO NOT HARDEN YOUR HEARTS AS WHEN THEY PROVOKED ME, AS IN THE DAY OF TRIAL IN THE WILDERNESS,
Hebrews 3:13-19
But encourage one another day after day, as long as it is still called "Today," so that none of you will be hardened by the deceitfulness of sin. For we have become partakers of Christ, if we hold fast the beginning of our assurance firm until the end, while it is said, "TODAY IF YOU HEAR HIS VOICE, DO NOT HARDEN YOUR HEARTS, AS WHEN THEY PROVOKED ME."
Hebrews 4:7
He again fixes a certain day, "Today," saying through David after so long a time just as has been said before, "TODAY IF YOU HEAR HIS VOICE, DO NOT HARDEN YOUR HEARTS."
Revelation 9:20-21
The rest of mankind, who were not killed by these plagues, did not repent of the works of their hands, so as not to worship demons, and the idols of gold and of silver and of brass and of stone and of wood, which can neither see nor hear nor walk; and they did not repent of their murders nor of their sorceries nor of their immorality nor of their thefts.
John 8:44 You belong to your father the devil, and you want to carry out the desires of your father. He was a murderer from the beginning and has never stood for truth, since there is no truth in him. Whenever he tells a lie he speaks in character, because he is a liar and the father of lies.
Mat_23:31 Wherefore ye be witnesses unto yourselves, that ye are the children of them which killed the prophets.
Luk_11:47 Woe unto you! for ye build the sepulchres of the prophets, and your fathers killed them.
Rom_11:3 Lord, they have killed thy prophets, and digged down thine altars; and I am left alone, and they seek my life.
1Th_2:15 Who both killed the Lord Jesus, and their own prophets, and have persecuted us; and they please not God, and are contrary to all men: