Some of the key verses that teach the preservation of the Bible include Psalm 12:6, 7; Matthew 24:35; and Isaiah 40:8. God went to great lengths to give the Scriptures through inspiration. It would be unlikely that He would not also promise to preserve His Word for all generations. "It is written, Man shall not live by bread alone, but by every word that proceedeth out of the mouth of God." - Matthew 4:4 Some writers treat the Bible as any secular book, but it is a supernatural book given by God. Beginning with His promises to keep His words for us, our study of the issue leads us to the conclusion that He has kept His Word in the King James Version of the Bible for the English-speaking world.
Beware of the powerful influence of advertising in the field of Bible publications. For over 400 years people have read the King James Version with great profit, in spite of the educational level of some readers. Advertisers today point to the difficulty of reading the KJV English. As in other fields, familiarity and understanding come with frequent study. We are willing to read, study, and use tools (like dictionaries) in other fields. Why should we not be willing to do so in the most important literature? If God has preserved His words for us in our King James Bible, then we should be willing to put forth the effort to learn the correct text that He has given us. The changes in the text of the Scripture do not always make the reading simpler, and if the source text is in error, ease of understanding does not improve the translation.