For the word of God is quick and powerful, and sharper than any two edged sword, piercing even to the dividing asunder of soul and spirit, and of the joints and marrow, and is a discerner of the thoughts and intents of the heart. (Hebrews 4:12)
The Bible contains the scriptures, which are God inspired thoughts to us. Faith is the key that unlocks their wisdom. The scriptures are a mirror to the soul. The truth of the scriptures will show you where you stand in comparison to where God wants you. You can deny the truth, but the truth will not deny you.