Matthew 4:3

He was an hungred, not during the forty days, but after them. Therefore when the Lord hungred, it was not that the effects of abstinence then first came upon Him, but that His humanity was left to its own strength. For the Devil was to be overcome, not by the God, but by the flesh. By this was figured, that after those forty days which He was to tarry on earth after His passion were accomplished, He should hunger for the salvation of man, at which time He carried back again to God His Father the expected gift, the humanity which He had taken on Him. And therefore in the temptation he makes a proposal of such a double kind by which His divinity would be made known by the miracle of the transformation, the weakness of the man deceived by the delight of food.

(in Luc. c. iv. 3.) He begins with that which had once been the means of his victory, the palate; If thou be the Son of God, command that these stones become loaves. What means such a beginning as this, but that he knew that the Son of God was to come, yet believed not that He was come on account of His fleshly infirmity. His speech is in part that of an enquirer, in part that of a tempter; he professes to believe Him God, he strives to deceive Him as man.

But that we may not, by hurrying over these victories, mar your profit, let us begin from the first assault, and examine each with exact care. Thus, after He was an hungered, it is said, "The tempter came, and said unto Him, If Thou be Son of God, command that these stones be made bread." For, because he had heard a voice borne from above, and saying, "This is My beloved Son;" and had heard also John bearing so large witness concerning Him, and after that saw Him an hungered; he was thenceforth in perplexity, and neither could believe that He was a mere man, because of the things spoken concerning Him; nor on the other hand receive it that He was Son of God, seeing Him as he did in hunger. Whence being in perplexity he utters ambiguous sounds. And much as when coming to Adam at the beginning, he feigns things that are not, that he may learn the things that are; even so here also, not knowing clearly the unutterable mystery of the Economy, and who He may be that is come, he attempts to weave other nets, whereby he thought to know that which was hidden and obscure. And what saith he? "If Thou be Son of God, command that these stones be made bread." He said not, because thou art an hungered, but, "if Thou be Son of God;" thinking to cheat Him with his compliments. Wherefore also he was silent touching the hunger, that he might not seem to be alleging it, and upbraiding Him. For not knowing the greatness of the Economy which was going on, he supposed this to be a reproach to Him. Wherefore flattering Him craftily, he makes mention of His dignity only.

(Serm. 39. 3.) hence he opposed the adversary rather by testimonies out of the Law, than by miraculous powers; thus at the same time giving more honour to man, and more disgrace to the adversary, when the enemy of the human race thus seemed to be overcome by man rather than by God.

The Devil who had begun to despair when he saw that Christ fasted forty days, now again began to hope when he saw that he was an hungred; and then the tempter came to him. If then you shall have fasted and after been tempted, say not, I have lost the fruit of my fast; for though it have not availed to hinder temptation, it will avail to hinder you from being overcome by temptation. But as the Devil blinds all men, so is he now invisibly made blind by Christ. He found Him an hungred at the end of forty days, and knew not that He had continued through those forty without being hungry. When he suspected Him not to be the Son of God, he considered not that the mighty Champion can descend to things that be weak, but the weak cannot ascend to things that are high. We may more readily infer from His not being an hungred for so many days that He is God, than from His being an hungred after that time that He is man. But it may be said, Moses and Elias fasted forty days, and were men. But they hungred and endured, He for the space of forty days hungred not, but afterwards. To be hungry and yet refuse food is within the endurance of man; not be hungry belongs to the Divine nature only. He said not, 'I live not,' but, Man doth not live by bread alone, that the Devil might still ask, If thou be the Son of God. If He be God, it is as though He shunned to display what He had power to do; if man, it is a crafty will that His want of power should not be detected.