“It is written, ‘MAN SHALL NOT LIVE ON BREAD ALONE, BUT ON EVERY WORD THAT PROCEEDS OUT OF THE MOUTH OF GOD.’” Matt 4:4
Contextually, Satan is appealing to Jesus' human need for food after a 40 day fast in the wilderness. His effort was an attempt to get Jesus to sin. One of the three main ways we are tempted is the lust of the flesh (the other two are the lust of the eye and the pride of life according to 1 John 3:16). How many of us submit ourselves to sin because of the things that our flesh craves?
Jesus lifts the conversation by indicating that there are more important things in life than the satisfying of what the body needs. We are not just physical beings but spiritual beings also. Long after our current bodies have gone the way of decay, our spirits (which will be housed in glorified bodies) will continue on into eternity. The best way to determine how that eternity will be spent (and whether we get the glorified body) is found in our attendance to the word of God.
Beloved, so often we allow our attention to be distracted by things that have questionable benefit. We suffer from a type of spiritual ADHD (attention deficit hyperactivity disorder). We need not be concerned about the needs of the body. The Lord has said, "But seek first His kingdom and His righteousness and all these things will be added to you" Matt 6:33. The psalmist likewise said, "I have been young and now I am old, Yet I have not seen the righteous forsaken or his descendants begging bread" Psa 37:25. God knows exactly what we need and He does provide. Ours is to focus on His word wherein true nourishment is derived.