So explain how a sinful wicked person who by nature loves darkness and hates the light, how do they change their nature to love the light and truth. Its like saying a meat eating lion by nature changes his nature to desire to now eat blueberries instead.
All do nor remain in such a state
And it is not impossible foe men to believe
John 1:6–7 (KJV 1900) — 6 There was a man sent from God, whose name was John. 7 The same came for a witness, to bear witness of the Light, that all men through him might believe.
John the apostle believes the testimony of John the Baptist is sufficient for faith.
John 5:45–47 (KJV 1900) — 45 Do not think that I will accuse you to the Father: there is one that accuseth you, even Moses, in whom ye trust. 46 For had ye believed Moses, ye would have believed me: for he wrote of me. 47 But if ye believe not his writings, how shall ye believe my words?
John 4:39 (KJV 1900) — 39 And many of the Samaritans of that city believed on him for the saying of the woman, which testified, He told me all that ever I did.
How much exegesis is needed to see men believed based upon the woman's testimony
John 17:20 (KJV 1900) — 20 Neither pray I for these alone, but for them also which shall believe on me through their word;
men will be able to believe based on the apostle's testimony
Acts 19:8 (ESV) — 8 And he entered the synagogue and for three months spoke boldly, reasoning and persuading them about the kingdom of God.
Paul persauded men concerning the Kingdom of God
Acts 17:2–4 (ESV) — 2 And Paul went in, as was his custom, and on three Sabbath days he reasoned with them from the Scriptures,
3 explaining and proving that it was necessary for the Christ to suffer and to rise from the dead, and saying, “This Jesus, whom I proclaim to you, is the Christ.”
4 And some of them were persuaded and joined Paul and Silas, as did a great many of the devout Greeks and not a few of the leading women.
Convincing them Jesus was the Christ
Acts 28:23–24 (KJV 1900) — 23 And when they had appointed him a day, there came many to him into his lodging; to whom he expounded and testified the kingdom of God, persuading them concerning Jesus, both out of the law of Moses, and out of the prophets, from morning till evening.
24 And some believed the things which were spoken, and some believed not.
Even the preaching of the old testament is sufficient
John 20:31 (KJV 1900) — 31 But these are written, that ye might believe that Jesus is the Christ, the Son of God; and that believing ye might have life through his name.
The reading of scripture is sufficient for belief
2 Timothy 3:15 (NIV) — 15 and how from infancy you have known the Holy Scriptures, which are able to make you wise for salvation through faith in Christ Jesus.
Ephesians 3:4–11 (NIV) — 4 In reading this, then, you will be able to understand my insight into the mystery of Christ, 5 which was not made known to people in other generations as it has now been revealed by the Spirit to God’s holy apostles and prophets. 6 This mystery is that through the gospel the Gentiles are heirs together with Israel, members together of one body, and sharers together in the promise in Christ Jesus. 7 I became a servant of this gospel by the gift of God’s grace given me through the working of his power. 8 Although I am less than the least of all the Lord’s people, this grace was given me: to preach to the Gentiles the boundless riches of Christ, 9 and to make plain to everyone the administration of this mystery, which for ages past was kept hidden in God, who created all things. 10 His intent was that now, through the church, the manifold wisdom of God should be made known to the rulers and authorities in the heavenly realms, 11 according to his eternal purpose that he accomplished in Christ Jesus our Lord.
As is the preaching of it.
Romans 10:10–17 (KJV 1900) — 10 For with the heart man believeth unto righteousness; and with the mouth confession is made unto salvation. 11 For the scripture saith, Whosoever believeth on him shall not be ashamed. 12 For there is no difference between the Jew and the Greek: for the same Lord over all is rich unto all that call upon him. 13 For whosoever shall call upon the name of the Lord shall be saved. 14 How then shall they call on him in whom they have not believed? and how shall they believe in him of whom they have not heard? and how shall they hear without a preacher? 15 And how shall they preach, except they be sent? as it is written, How beautiful are the feet of them that preach the gospel of peace, and bring glad tidings of good things! 16 But they have not all obeyed the gospel. For Esaias saith, Lord, who hath believed our report? 17 So then faith cometh by hearing, and hearing by the word of God.
Acts 28:23–24 (KJV 1900) — 23 And when they had appointed him a day, there came many to him into his lodging; to whom he expounded and testified the kingdom of God, persuading them concerning Jesus, both out of the law of Moses, and out of the prophets, from morning till evening.
24 And some believed the things which were spoken, and some believed not.
John 7:31 (KJV 1900) — 31 And many of the people believed on him, and said, When Christ cometh, will he do more miracles than these which this man hath done?
Miracles have power to bring about faith
John 5:36 (KJV 1900) — 36 But I have greater witness than that of John: for the works which the Father hath given me to finish, the same works that I do, bear witness of me, that the Father hath sent me.
John 12:40 (KJV 1900) — 40 He hath blinded their eyes, and hardened their heart; that they should not see with their eyes, nor understand with their heart, and be converted, and I should heal them.
God blinded men to prevent their belief. Why would God blind someone who had no ability to see?
Why prevent from believing those who had no capacity for belief
Luke notes had men not grown hardened they could have believed
Acts 28:27 (KJV 1900) — 27 For the heart of this people is waxed gross, and their ears are dull of hearing, and their eyes have they closed; lest they should see with their eyes, and hear with their ears, and understand with their heart, and should be converted, and I should heal them.
unregenerate men are shown to receive the word with joy and believe
Luke 8:13 (KJV 1900) — 13 They on the rock are they, which, when they hear, receive the word with joy; and these have no root, which for a while believe, and in time of temptation fall away.
