We are not simply a physical being. We are a spiritual being as well. That’s why we can’t live by bread alone. We need the Word of God also. It is the means by which we build up and nourish ourselves spiritually. Just like we eat food for our body daily, we should strive to study the Word of God daily to feed our spirit. The Christian who chooses to live by bread alone will lack faith and vibrancy in the Lord.