Well we know King James authorized 80 books, if your bible only has 66 you have a defect.
But een King James didn't include all of hte books from the oldest and most intact Bible on Earth
The Ethiopian Bible.
Genesis Exodus Leviticus Numbers Deuteronomy JoshuaJ udges Ruth I and II SamuelI and II Kings I Chronicles II Chronicles (incl. the Prayer of Manasseh) Jubilees Enoch I Ezra[4 ]II Ezra[4]Ezra Sutuel[4]TobitJudithEstherI, II and III Meqabyan (Similarly named, but not the same as the four Greek Books of the Maccabees. )JobPsalmsMessalë (Proverbs ch 1–24)Tägsas (“Reproof”; Proverbs ch 25–31)Wisdom of Solomon Ecclesiastes Song of Songs Isaiah Jeremiah (incl. Lamentations, Letter of Jeremiah, Baruch and 4 Baruch) Ezekiel Daniel Hosea Amos Micah Joel Obadiah Jonah Nahum (or Nahium) Habakkuk Zephaniah Haggai Zechariah Malachi SirachJ osippon New Testament[1]
Matthew Mark Luke John Acts Romans I Corinthians II Corinthians Galatians Ephesians Philippians Colossians I Thessalonians II ThessaloniansI TimothyII TimothyTitusPhilemonHebrewsI PeterII PeterI JohnII JohnIII JohnJamesJudeRevelationSinodosSer`atä Seyon (30 canons)Te’ezaz (71 canons)Gessew (56 canons)Abtelis (81 canons)I-II CovenantEthiopic Clement[5]Ethiopic Didascalia[5]
Praise the Lord