We will not forget the works of the Lord; we will render Him homage continually.
13. And no man has ascended up to heaven, but he that came down from heaven, even the Son of man which is in heaven.
AUG. After taking notice of this lack of knowledge in a person, who, on the strength of his magisterial station, set himself above others, and blaming the unbelief of such men, our Lord says, that if such as these do not believe, others will: No one has ascended into heaven, but He that came down from heaven, even the Son of man who is in heaven. This may be rendered: The spiritual birth shall be of such sort, as that men from being earthly shall become heavenly: which will not be possible, except they are made members of Me; so that he who ascends, becomes one with Him who descended. Our Lord accounts His body, i.e. His Church, as Himself.
GREG. Forasmuch as we are made one with Him, to the place from which He came alone in Himself, thither He returns alone in us; and He who is ever in heaven, daily ascends to heaven.
AUG. Although He was made the Son of man upon earth, yet His Divinity with which, remaining in heaven, He descended to earth, He has declared not to disagree with the title of Son of man, as He has thought His flesh worthy the name of Son of God. For through the Unity of person, by which both substances are one Christ, He walked upon earth, being Son of God; and remained in heaven, being Son of man. And the belief of the greater, involves belief in the less. If then the Divine substance, which is so far more removed from us, and could for our sake take up the substance of man so as to unite them in one person; how much more easily may we believe, that the Saints united with the man Christ, become with Him one Christ, so that while it is true of all, that they ascend by grace, it is at the same time true, that He alone ascends to heaven, Who came down from heaven.
CHRYS. Or thus: Nicodemus having said, We know that You are a teacher sent from God; our Lord says, And no man has ascended, &c. in that He might not appear to be a teacher only like one of the Prophets.
THEOPHYL. But when you hear that the Son of man came down from heaven, think not that His flesh came down from heaven; for this is the doctrine of those heretics, who held that Christ took His Body from heaven, and only passed through the Virgin.
CHRYS. By the title Son of man here, He does not mean His flesh, but Himself altogether; the lesser part of His nature being put to express the whole. It is not uncommon with Him to name Himself wholly from His humanity, or wholly from His divinity.
BEDE; If a man of set purpose descend naked to the valley, and there providing himself with clothes and armor, ascend the mountain again, he who ascended may be said to be the same with him who descended.
HILARY; Or, His descending from heaven is the source of His origin as conceived by the Spirit: Mary gave not His body its origin, though the natural qualities of her sex contributed its birth and increase. That He is the Son of man is from the birth of the flesh which was conceived in the Virgin. That He is in heaven is form the power of His everlasting nature, which did not contract the power of the Word of God, which is infinite, within the sphere of a finite body. Our Lord remaining in the form of a servant, far from the whole circle, inner and outer, of heaven and the world, yet as Lord of heaven and the world, was not absent therefrom. So then He came down from heaven because He was the Son of man; and He was in heaven, because the Word, which was made flesh, had not ceased to be the Word.
AUG. But you wonder that He was at once here, and in heaven. Yet such power has He given to His disciples. Hear Paul, Our conversation is in heaven. If the man Paul walked upon earth, and had his conversation in heaven; shall not the God of heaven and earth be able to be in heaven and earth?
CHRYS. That too which seems very lofty is still unworthy of His vastness. For He is not in heaven only, but every where, and fills all things. But for the present He accommodates Himself to the weakness of His hearer, that by degrees He may convert him.
14. And as Moses lifted up the serpent in the wilderness, even so must the Son of man be lifted up:
15. That whosoever believes in him should not perish, but have eternal life.
CHRYS. Having made mention of the gift of baptism, He proceeds to the source of it, i.e. the cross: And as Moses lifted up the serpent in the wilderness, even so must the Son of man be lifted up.
BEDE; He introduces the teacher of the Mosaic law, to the spiritual sense of that law; by a passage from the Old Testament history, which was intended to be a figure of His Passion, and of man's salvation.
AUG. Many dying in the wilderness from the attack of the serpents, Moses, by commandment of the Lord, lifted up a brazen serpent and those who looked upon it were immediately healed. The lifting up of the serpent is the death of Christ; the cause, by a certain mode of construction, being put for the effect. The serpent was the cause of death, inasmuch as he persuaded man into that sin, by which he merited death. Our Lord, however, did not transfer sin, i.e. the poison of the serpent, to his flesh, but death; in order that in the likeness of sinful flesh, there might be punishment without sin, by virtue of which sinful flesh might be delivered both from punishment and from sin.
THEOPHYL. See then the aptness of the figure. The figure of the serpent has the appearance of the beast, but not its poison: in the same way Christ came in the likeness of sinful flesh, being free from sin. By Christ's being lifted up, understand His being suspended on high, by which suspension He sanctified the air, even as He had sanctified the earth by walking upon it. Herein too is typified the glory of Christ: for the height of the cross was made His glory for in that He submitted to be judged, He judged the prince of this world; for Adam died justly, because he sinned; out Lord unjustly, because He did no sin. So He overcame him, who delivered Him over to death, and thus delivered Adam from death. And in this the devil found himself vanquished, that he could not upon the cross torment our Lord into hating His murderers: but only made Him love and pray for them the more. In this way the cross of Christ was made His lifting up, and glory.
CHRYS. Wherefore He does not say, The Son of man must be suspended, but lifted up, a more honorable term, but coming near the figure. He uses the figure to show that the old dispensation is akin to the new, and to show on His hearers' account that He suffered voluntarily; and that His death issued in life.
AUG. As then formerly he who looked to the serpent that was lifted up, was healed of its poison, and saved from death; so now he who is conformed to the likeness of Christ's death by faith and the grace of baptism, is delivered both from sin by justification, and from death by the resurrection: as He Himself said; That whosoever believes in Him should not perish, but have everlasting life. What need then is there that the child should be conformed by baptism to the death of Christ, if he be not altogether tainted by the poisonous bite of the serpent?
CHRYS. Observe; He alludes to the Passion obscurely, in consideration to His hearer; but the fruit of the Passion He unfolds plainly; viz. that they who believe in the Crucified One should not perish. And if they who believe in the Crucified live, much more shall the Crucified One Himself.
AUG. But there is this difference between the figure and the reality, that the one recovered from temporal death, the other from eternal.
16. For God so loved the world, that he gave his only begotten Son, that whosoever believes in him should not perish, but have everlasting life.
17. For God sent not his Son into the world to condemn the world; but that the world through him might be saved.
CHRYS. Having said, Even so must the Son of man be lifted up, alluding to His death; lest His hearer should be cast down by His words, forming some human notion of Him, and thinking of His death as an evil, He corrects this by saying, that He who was given up to death was the Son of God, and that His death would be the source of life eternal; So God loved the world, that He gave His only begotten Son, that whosoever believes in Him should not perish, but have everlasting life; as if He said, Marvel not that I must be lifted up, that you may be saved: for so it seems good to the Father, who has so loved you, that He has given His Son to suffer for ungrateful and careless servants. The text, God so loved the world, shows intensity of love. For great indeed and infinite is the distance between the two. He who is without end, or beginning of existence, Infinite Greatness, loved those who were of earth and ashes, creatures laden with sins innumerable. And the act which springs from the love is equally indicative of its vastness. For God gave not a servant, or an Angel, or an Archangel, but His Son. Again, had He had many sons, and given one, this would have been a very great gift; but now He has given His Only Begotten Son.
HILARY; If it were only a creature given up for the sake of a creature, such a poor and insignificant loss were no great evidence of love. They must be precious things which prove our love, great things must evidence its greatness. God, in love to the world, gave His Son, not an adopted Son, but His own, even His Only Begotten. Here is proper Sonship, birth, truth: no creation, no adoption, no lie: here is the test of love and charity, that God sent His own and only begotten Son to save the world.
THEOPHYL As He said above, that the Son of man came down from heaven, not meaning that His flesh did come down from heaven, on account of the unity of person in Christ, attributing to man what belonged to God: so now conversely what belongs to man, he assigns to God the Word. The Son of God was impassible; but being one in respect of person with man who was passable, the Son is said to be given up to death, inasmuch as He truly suffered, not in His own nature, but in His own flesh. From this death follows an exceeding great and incomprehensible benefit: viz. that whosoever believes in Him should not perish, but have everlasting life. The Old Testament promised to those who obey obeyed it, length of days: the Gospel promises life eternal, and imperishable.
BEDE; Note here, that the same which he before said of the Son of man, lifted up on the cross, he repeats of the only begotten Son of God: viz. That whosoever believes in Him, &c. For the same our Maker and Redeemer, who was Son of God before the world was, was made at the end of the world the Son of man; so that He who by the power of His Godhead had created us to enjoy the happiness of an endless life, the same restored us to the life we have lost by taking our human frailty upon Him.
ALCUIN. Truly through the Son of God shall the world have life; for no other cause came He into the world, except to save the world. God sent not His Son into the world to condemn the world, but that the world through Him might be saved.
AUG. For why is He called the Savior of the world, but because He saves the world? The physician, so far as his will is concerned, heals the sick. If the sick despises or will not observe the directions of the physician, he destroys himself.
Catena Aurea John 3
This day is also called the Exaltation of the Cross, Elevation of the Cross, Holy Cross Day, Holy Rood Day, or Roodmas. The liturgy of the Cross is a triumphant liturgy. When Moses lifted up the bronze serpent over the people, it was a foreshadowing of the salvation through Jesus when He was lifted up on the Cross. Our Mother Church sings of the triumph of the Cross, the instrument of our redemption. To follow Christ we must take up His cross, follow Him and become obedient until death, even if it means death on the cross. We identify with Christ on the Cross and become co-redeemers, sharing in His cross. 
St. Zita of Lucca, Italy, is the best-known patron of domestic servants. A less-known contemporary of Zita's was St. Notburga of Austria, who is venerated in the Austrian Tyrol, Bavaria, Istria, Croatia and Slovenia. Many a church in these lands bears her name. 
