Patristic Wisdom: Looking to the First Sunday in Lent

Then Jesus, being filled with the Holy Spirit, returned from the Jordan and was led by the Spirit into the wilderness, being tempted for forty days by the devil. And in those days He ate nothing, and afterward, when they had ended, He was hungry. And the devil said to Him, “If You are the Son of God, command this stone to become bread.” But Jesus answered him, saying, “It is written, ‘Man shall not live by bread alone, but by every word of God.’ ” Then the devil, taking Him up on a high mountain, showed Him all the kingdoms of the world in a moment of time. And the devil said to Him, “All this authority I will give You, and their glory; for this has been delivered to me, and I give it to whomever I wish. Therefore, if You will worship before me, all will be Yours.” And Jesus answered and said to him, “Get behind Me, Satan! For it is written, ‘You shall worship the Lord your God, and Him only you shall serve.’ ” Then he brought Him to Jerusalem, set Him on the pinnacle of the temple, and said to Him, “If You are the Son of God, throw Yourself down from here. For it is written: ‘He shall give His angels charge over you, to keep you,’ and, ‘In their hands they shall bear you up, lest you dash your foot against a stone.’” And Jesus answered and said to him, “It has been said, ‘You shall not tempt the Lord your God.’” Now when the devil had ended every temptation, he departed from Him until an opportune time. (Luke 4:1–13)

So, look at the arms of Christ with which He conquered for you, not for Himself. For He who showed that stones could, through His majesty, be changed into bread by the transformation into a different nature, teaches that you must do nothing at the devil's behalf nor for the purpose of manifesting virtue. At the same time, learn from the temptation itself the ingenious cunning of the devil. The devil tempts that he may test. He tests that he may tempt. In contrast, the Lord deceives that He may conquer. He conquers that He may deceive. For if He had changed nature, He would have betrayed its Creator. Thus He responded neutrally, saying, “It is written, ‘That man lives not by bread alone, but by every word of God.’” You see what kind of arms he wields, to defend humanity, surrounded and protected against the inducements of appetite, against the assault of spiritual wickedness. For He does not wield power as God—for what good would that be to me? So, as man, He summons common help for Himself, so that eager for the food of the divine Word, He neglects the body's hunger and obtains the nourishment of the heavenly Word. Eager for this, Moses did not desire bread. Eager for this, Elijah did not feel the hunger of a long fast. For he who follows the Word cannot desire earthly bread when he receives the essence of the heavenly Bread. There is no doubt that the divine surpasses the human, as the spiritual the physical. Therefore he who desires true life awaits that Bread which through its intangible substance strengthens human hearts. At the same time, when He says, “Man lives not by bread alone,” He shows that the man is tempted, that is, His acceptance of our flesh, not His divinity.

Ambrose, Exposition of the Gospel of Luke 4.19–20