The Word is a sword that slays our sin (Eph. 6:17). If we say we want to fight sin than we must have our sword. We can’t fight sin let alone experience any victory if we don’t always have the Word ready at hand.
We see this truth attested to in various places in Scripture:
“How can a young man keep his way pure?
By guarding it according to your word.” ~Psalm 119:9
“Sanctify them in the truth; your word is truth.” ~John 17:17
“The word of God is living and active, sharper than any two-edged sword, piercing to the division of soul and of spirit, of joints and of marrow, and discerning the thoughts and intentions of the heart.” ~Hebrews 4:12
“Therefore put away all filthiness and rampant wickedness and receive with meekness the implanted word, which is able to save your souls.” ~James 1:21
We also see that Scripture is our bread, it is life supporting. We need it desperately. We need it to live (Ps. 119:144). We need the “words of life” (Jn. 6:68). If we think or act any other way we are ripe for a fall. The soldier who doesn’t have his weapon dies just as the person who doesn’t eat the life-giving bread.
We need the Word. We need bread. We cannot live any other way.