Matthew 4:1-4

Then  Jesus was led up by the Spirit into the wilderness to be tempted by the devil.  After he had fasted forty days and forty nights,  he was hungry. Then the tempter approached him and said, “If you are the Son of God, tell these stones to become bread.”  He answered, “It is written: Man must not live on bread alone but on every word that comes from the mouth of God. ”