John 6:63

It is the Spirit who gives life; the flesh profits nothing.  The words that I speak to you are spirit, and they are life.

The Spirit through the word gives us life and life more abundantly. Our words will either lift us up or defeat us, and no one wants to live a defeated life.  The wisdom of the flesh (mind) can never reach the wisdom of God and the Bible.  As we draw closer to God through the word our lives will bear the fruit of His instruction.