What does the Bible say about the Word of God?

Prov. 30:5-6  Every word of God is pure: He is a shield to those who put their trust in Him. Do not add to His words, lest He rebuke you, and you be found a liar. (NKJ)
NIV  Every word of God is flawless; he is a shield to those who take refuge in him. Do not add to his words, or he will rebuke you and prove you a liar.
2 Tim. 3:16-17  All Scripture is given by inspiration of God, and is profitable for doctrine, for reproof, for correction, for instruction in righteousness, that the man of God may be complete, thoroughly equipped for every good work. (NKJ)
NIV   All Scripture is God-breathed and is useful for teaching, rebuking, correcting and training in righteousness, so that the man of God may be thoroughly equipped for every good work.

     Since all Scripture is useful, even the book of Acts is also useful for teaching, doctrine, correcting, and instruction in righteousness! The preceding verses reveal that a clear, flawless doctrine of the Holy Spirit can be constructed from the Holy Bible. If the Bible were to present no clear doctrine of the Holy Spirit, thoroughly equipping any man for God’s good work would be impossible. The aforementioned verse would make no sense.

2 Pet. 3:15-16  and consider that the longsuffering of our Lord is salvation--as also our beloved brother Paul, according to the wisdom given to him, has written to you, as also in all his epistles, speaking in them of these things, in which are some things hard to understand, which untaught and unstable people twist to their own destruction, as they do also the rest of the Scriptures. (NKJ)
NIV  Bear in mind that our Lord’s patience means salvation, just as our dear brother Paul also wrote you with the wisdom that God gave him. He writes the same way in all his letters, speaking in them of these matters. His letters contain some things that are hard to understand, which ignorant and unstable people distort, as they do the other Scriptures, to their own destruction.
James 3:1  My brethren, let not many of you become teachers, knowing that we shall receive a stricter judgment. (NKJ)
NIV   Not many of you should presume to be teachers, my brothers, because you know that we who teach will be judged more strictly.

     The apostle Peter confessed that some things in the Pauline Epistles were hard to understand. Ignorant and unstable people distorted and twisted Paul’s words and other Scriptures to their own destruction. Sadly, this continues to this very day. There are many passages in the Bible, even in the book of Acts, which are hard to understand. The Word of God must be handled with care. For this reason we remember the warning of James 3:1. “My brethren, let not many of you become teachers, knowing that we shall receive a stricter judgment.” (NKJ)