And after He had fasted 40 days and 40 nights He then became hungry. And the tempter came and said to Him, "If you are the Son of God, command that these stones become bread." - Matthew 4:2-3
The first temptation
Satan tried to place doubt in the mind of Jesus with the words "If you are the Son of God." Matthew shows that the devil came at the end of Jesus' fast.
The danger of this temptation was not in making bread. Jesus was not under a prohibition from miraculously creating food. On two occasions Jesus used his power to create bread for a multitude of people (see Mark 6:35-44, Mark 8:1-21).
The real peril lay in Satan's proposed reason for creating bread. That reason being "If you are the Son of God." Satan was challenging Christ's credentials.
Jesus quotes Moses
But He answered and said, "It is written, 'Man shall not live on bread alone, but on every word that proceeds from the mouth of God.'" - Matthew 4:4
Jesus immediately perceived the real danger, and responded with a passage from Deuteronomy 8:3. In that passage, Moses reminded the Israelites that God humbled them in the wilderness when He provided manna from heaven.
This quote gives insight into Christ's mindset during this ordeal. His reliance on God's will is contrasted with reliance on temporal things, like food.
Jesus humbly relied on God. He rendered obedience by not doubting God's declaration, "This is my beloved Son."