The Preserved Word of God is the 1611 King James Bible
Psalms 12: 6-7 6: The words of the LORD are pure words: as silver tried in a furnace of earth, purified seven times. 7: Thou shalt keep them, O LORD, thou shalt preserve them from this generation for ever.
2 Timothy 3:16-17 All scripture is given by inspiration of God, and is profitable for doctrine, for reproof, for correction, for instruction in righteousness: 17: That the man of God may be perfect, thoroughly furnished unto all good works.