"For the Word of God is living and active, sharper than any two edged sword, piercing to the division of soul and a spirit, of joints and marrow, and discerning the thoughts and intentions of the heart." - Hebrews 4:12
Each Christian is engaged in constant spiritual warfare. The battlefield is our mind, and our weapon is the Word of God. The Bible is not an ordinary book. It is endowed with divine power. The Word is to the starving soul what food is to the starving man. Our Lord tells us to "hunger and thirst for righteousness." How can we know what is right except from what comes from the mouth of God?
Several days without food should produce intense hunger inside a man. Likewise going several days without the Word of God should produce an intense hunger inside the soul of a Christian.
Jesus during His time on earth as the incarnate Word of God indeed "pierced the divisions of soul and spirit and discerned the thoughts and intentions of the heart." The humble were drawn to Jesus like moths to a flame, while the proud were repelled like darkness from light. Wherever Jesus went He separated the wheat from the chaff, accepting the pure hearted, while rebuking the mean spirited.
When Christ was engaged in His own spiritual warfare in the wilderness, He called upon the Word to defeat his adversary. If Jesus relied upon the Word how much more so should we?
The enemy wants to convince us that we don't need God's Word.
If we are called to imitate Christ in all ways then we must also imitate his devotion to the Word of God.
Man does not live on bread alone but on every word that comes from the mouth of the LORD - Deuteronomy 8:3