What does it mean that we live by every word of God?

In Deuteronomy 8:3, it is stated that man does not live by bread alone, but by every word that proceeds from the mouth of the Lord. This reflects the need for spiritual nourishment through Scripture, which is essential for a thriving spiritual life. Jesus quotes this verse in His temptation, affirming that our sustenance comes from God's Word. It teaches us that while physical provisions are necessary, our true sustenance and life come from understanding and abiding in God's teachings. Engaging with the Bible daily is a necessity for growth in grace, guiding believers to live according to His will and understand their dependency on Him.