The officers answered, Never man spake like this man, John 7:46.
As we read through the gospel accounts of Jesus Christ among the people, we find that people were attracted to him for a number of reasons.
They hoped to see miracles. And when Herod saw Jesus, he was exceeding glad: for he was desirous to see him of a long season, because he had heard many things of him; and he hoped to have seen some miracle done by him, Luke 23:8.
He fed them. Jesus answered them and said, Verily, verily, I say unto you, Ye seek me, not because ye saw the miracles, but because ye did eat of the loaves, and were filled, John 6:26.
The words that he spoke. As he spake these words, many believed on him, John 8:30.
In the end, it was those who believed through his words that stuck with him. His words bore witness to who he was, not because he spoke of himself, he spoke the words of God and that was all the proof that he ever needed. We see Pharisees arguing over his origins and it got them no where.
John 7:40 Many of the people therefore, when they heard this saying, said, Of a truth this is the Prophet.
John 7:41 Others said, This is the Christ. But some said, Shall Christ come out of Galilee?
John 7:42 Hath not the scripture said, That Christ cometh of the seed of David, and out of the town of Bethlehem, where David was?
John 7:43 So there was a division among the people because of him.
Jesus Christ did indeed come out of Bethlehem but God went to great lengths to obscure that during his lifetime. It took the great taxing at the time of his birth to get his parents to Bethlehem, and then quite quickly he was taken to Egypt. There was an order to how people discerned that he was born in Bethlehem. They believed on him because of his words, then they deduced that he must have been born in Bethlehem since the Christ was to be born there. They did not put the historical pieces together and then figure out that he was the Christ.
After the death, burial, and resurrection of Jesus Christ, the facts of his birth were made clear with the writings of the Gospels.
The word of God works likewise. I have never seen a person become convinced of the King James Bible because of its history. I have seen people lose confidence in it because of false historical narratives, and I have seen people who refuse to consider it because of some deeply ingrained prejudices that usually include false histories.
The proof of the King James Bible is the King James Bible. The proof is the words themselves. They are life giving words. I instruct people who are new to reading it that I am not upset if they don't believe it. So then faith cometh by hearing, and hearing by the word of God, Romans 10:17. If they read it, faith will come. I am far more bothered by people who say that they believe it but act like they don't.
The true proof of the King James Bible is that the words written therein do exactly what they say they will do. The King James Bible gives instruction of how to reform and improve a life. As the new reader implements the promises of the book into his life, he finds that they work. Such a person does not need historical proofs.
I am glad that no matter how cunning an attack is that seeks to undermine such a person's faith, we live in an age in which the accumulation of historical and linguistic proofs are overwhelming. Just don't get deceived into thinking that those historical proofs are spiritual proof. They are comfort for the convinced. The proof of the King James Bible are the words themselves and that they speak like no man ever spake.