Have you gone a day without eating? Imagine not eating for a week. You will end up weak and ill. The same applies to our spiritual life; the Bible is food for our spiritual development. If we go too long without reading His word, we will feel spiritually weak and sick.
Why do we need the word? Jesus defeated the devil using the word of God. It is the sword of the spirit with which we can defeat the enemy. In times of trouble the Word of God is our stay. It is food for our soul and brings joy and drives out doubt. Faith comes by hearing the word of God. It is life and health to our bones. Jeremiah15:16, “When your words came, I ate them; they were my joy and my heart’s delight.”