What we DO know from Scripture is that God has promised to preserve His words. He says Heaven and earth shall pass away, but His words shall not pass away. He also says The Scripture cannot be broken. The Bible also tells us that God is a God of truth and He cannot lie. If I find lies in a "bible" version, then I know this is not the true words of God. This would be things like teaching that the children of Israel DECEIVED God as the NASB, NET versions have it in Psalm 78:36. Or that Jesus Christ had "origins" as the NIV, RSV, ESV 2001 edition have it in Micah 5:2. Or that teach that Jesus lied in John 7:8-10 as the NASB, ESV and NIV 2011 teach.
Yet God tells us to search out and read "the book of the LORD" (Isaiah 34:16), so such a book must exist somewhere. It is NOT in the varied Hebrew texts; that is only part of a bible. It certainly is not in the thousands of variant readings in piles of manuscript scraps in Greek that few can read and that do not make up a Bible either.
Either God has acted in history to bring us "the book of the LORD" or He lied and is not to be trusted.
Prove to me the King James is perfect. I have been waiting years and years for proof of this. Where is this thought process that every word has to be perfect? Only the original wirtten by the author is perfect. Any other translation is just that, a translation.