God’s word is our only real source of truth. Verses 16-17 says, 16 All Scripture is God‑breathed and is useful for teaching, rebuking, correcting and training in righteousness, 17 so that the man of God may be thoroughly equipped for every good work. Because the Bible is the inspired and trustworthy word of God himself, we must read it and apply it to our lives on a daily basis. The Bible is our test for everything that claims to be truth. If it does not line up with Biblical truths then it must be discarded because it is our safeguard against false teaching and half-truths. The more we are familiar with Biblical truths the safer we become.