God promises to preserve His words.
The words of the LORD are pure words: as silver tried in a furnace of earth, purified seven times. Thou shalt keep them, O LORD, thou shalt preserve them from this generation for ever. (Psalms 12:6-7)
You shall not add or take away, says God.
Now therefore hearken, O Israel, unto the statutes and unto the judgments, which I teach you, for to do them, that ye may live, and go in and possess the land which the LORD God of your fathers giveth you. Ye shall not add unto the word which I command you, neither shall ye diminish ought from it, that ye may keep the commandments of the LORD your God which I command you.
God cares about every one of His words.
Every word of God is pure: he is a shield unto them that put their trust in him. Add thou not unto his words, lest he reprove thee, and thou be found a liar. (Proverbs 30:5-6)
God's words will never pass away.
Heaven and earth shall pass away: but my words shall not pass away. (Jesus Christ, Son of God) (Mark 13:31)
God will curse those who change His Word.
For I testify unto every man that heareth the words of the prophecy of this book, If any man shall add unto these things, God shall add unto him the plagues that are written in this book: And if any man shall take away from the words of the book of this prophecy, God shall take away his part out of the book of life, and out of the holy city, and from the things which are written in this book.(Revelation 22:18-19)
This doesn't sound like God inspired only the "concepts" in Scripture. He clearly directed every word and will not tolerate man's meddling with it. He calls them "His Words."
If your Bible is a King James Bible, it preserves God's words because it was translated using "formal equivalence." All other Bibles were translated using "dynamic equivalence," in which the translator is free to change words as long as he conveys the "idea."
Read the above Scriptures again. Which kind of Bible do you think God wants you to have?