Haydock's Catholic Bible Commentary: John
Ver. 19. The Son cannot do any thing of himself,[5] but what he seeth the Father do. In like manner, (ver. 30.) Christ says, I can do nothing of myself. As I hear, so I judge. Again (Chap. viii. 28.) I do nothing of myself; but as the Father hath taught me, I speak these things. All these, and the like expressions, may be expounded, with Maldonatus and Petavius, (lib. ii. de Trin. chap. 4.) of Christ, as man. But the ancient Fathers commonly allowed them to be understood of Christ as God, and as the true Son of God proceeding from him from all eternity; as when it is said, the Son cannot do any thing of himself, it is true, because the eternal Son is not of himself, but always proceeds from the Father. 2. Because the works of all the three Persons, by which all things are produced and preserved, are inseparable. 3. When it is said, that the Son doth nothing, but what he seeth the Father doing: that he heareth, as the Father hath taught him, or shewed to him: these expressions bear not the same sense as when they are applied to men, or to an inferior or a scholar, who learns of his master, and follows him; but here, says St. Augustine, to see, to hear, to be taught by the Father, is no more than to proceed from him, to do and produce by the same action, all that the Father doth and produceth. This is the general interpretation of the ancient Fathers: St. Athanasius, St. Basil, St. Gregory of Nazianzus, St. Chrysostom, St. Cyril, St. Ambrose, St. Augustine. The words immediately following, confirm this exposition, when it is said: For what things soever he (the Father) doth, these also in like manner the Son doth, i.e. the very same things by an unity of nature, of will, and of action: nor could these words be true, unless the Son was the same true God with the Father. (Witham) --- This must be understood, that he cannot do any thing contrary to the will of the Father. He does not say, "The Son does nothing of himself, but the Son can do nothing of himself, in order to shew their likeness and perfect equality." For by saying this, he does not betray any want of power in the Son; but, on the contrary, shews his great power. For when we say that God cannot sin, we do not esteem it a want of power; so when the Son says he cannot do any thing of himself, his meaning is, that he cannot do any thing contrary to the will of the Father;
which certainly is a great perfection. (St. Chrysostom, hom. xxxvii. in Joan.)
Ver. 20. Greater works than these will he (the Father) shew him, &c. These words may also, with Maldonatus be expounded of Christ, as man; but the ancient interpreters understand them of Christ, as God, in this sense, that the Father, and the Son, or the Father by the Son, will shew greater miracles hereafter done by Christ, that more persons may admire and believe. (Witham)
Ver. 21. For as the Father ... giveth life, so also the Son giveth life to whom he will; where these words, to give life to whom he will, shew the power of the Son and of the Father to be equal. (Witham) --- Our Saviour here mentions the greater works he spoke of in the preceding verse; for it is much more wonderful that the dead should rise, than that the sick should recover their health. We are not to understand these words, as if they meant some were raised to life by the Father, and others by the Son; but that the Father raises those whom the Son raises. And lest any one should understand this, that the Father makes use of the Son as his minister, through whose means he raises the dead, he immediately adds, &c. (St. Augustine, Tract. xxi. in Joan.) --- We see the lovers of this temporal and perishable life, labour to the utmost of their power, I will not say to avoid death, but merely to prolong their frail existence. If, therefore, men labour with so much solicitude, if they strain every nerve to prolong their lives but for a few years; how foolish and blind to their interest must those be, who live in such a manner as to be deprived of the light of eternal day! (St. Augustine, De verb. Dni. Serm. 64.)
Ver. 22. Neither doth the Father judge any man. It is certain that God is the Judge of all, by divers places of the holy Scriptures; and to judge, belongs both to the Father and to the Son, as they are the same God: so that when it is added, that the Father hath given all judgment to the Son,[6] this is meant of the exterior exercise of his judgment upon all mankind at the end of the world, in as much as Christ then will return, in his human body, to judge all men, even as man, in their bodies. (Witham)
Ver. 24. Hath everlasting life. That is, a title to an eternal inheritance of glory, by believing in the Father, and in the Son, and also in the Holy Ghost, as we are taught to believe at our baptism. (Witham)
Ver. 25. The hour cometh ... when the dead shall hear the voice of the Son of God. Though some understand this of the rising of Lazarus; others of those that rose with Christ at his resurrection: yet by these words, when the dead shall hear the voice of the Son of God, seems rather to be signified the general resurrection at the end of the world; and though it be said, that now is the hour, this may be spoken of the last age of the world; and, as St. John says, (1 John ii. 18.) children, it is the last hour. In fine, some interpreters understand these words of a spiritual resurrection from sin, which Christ came to bring to the world. (Witham)
Ver. 27. To execute judgment, because he is the Son of man; or, because, he is God made man, and is to come to judgment in a visible manner, to judge all men. (Witham)
Ver. 29. Unto the resurrection of judgment. That is, condemnation. (Challoner)
Ver. 30. I can do nothing of myself, &c. See ver. 19. St. Chrysostom also take notice, that it may be no less with truth said of the Father, that he can do nothing of himself, nor without his Son, nor both of them without the Holy Ghost; because both they, and their actions, are inseparable. (Witham)
Ver. 31. If I bear witness of myself, &c. Christ tells the Jews elsewhere, (chap. viii. 14.) that though he should bear witness of himself, it would be true. But the sense of the words in this place is: I could allow you, that if I only gave testimony of myself you might seem to have some reason to except against my testimony: but now besides my own words, you have had also the testimony of John the Baptist, who divers times witnessed that I am the Messias, and the Son of God, come to take away the sins of the world. 2. You have had the testimony of my eternal Father, particularly at my baptism. 3. You have yet a greater testimony, by the works and miracles wrought before your eyes, and at the same time foretold by the prophets. 4. The prophets, and the Scriptures, which you search, or which I remit you to, to search them diligently, these also bear witness concerning me. (Witham)
Ver. 38. You do not observe the commandment he gave you. (Deuteronomy xviii. 15. 19.) of listening to the prophet He would send you.
Ver. 39. Or, You search the Scriptures: (scrutamini; ereunate). It is not a command for all to read the Scriptures; but a reproach to the Pharisees, that reading the Scriptures as they did, and thinking to find everlasting life in them, they would not receive him to whom all those Scriptures gave testimony, and through whom alone they could have that true life. (Challoner) --- This hope is the cause and motive which leads to this study; and eternal life is the end they propose to themselves in it. Hence, from the context and mode of argumentation made use of, the indicative, you search, instead of the imperative mood, search ye, is best supported. Catholics are most unjustly accused of depriving the faithful of the use of the holy Scriptures. The council of Trent, (Session v., chap. i. de reform.) makes this proviso; that in churches where there exists a prebendary, or benefice, set apart for lectures on sacred Scripture, the bishops, &c. shall compel those holding such benefice to expound the sacred Scriptures themselves, should they be equal to the duty; or, by a proper substitute, chosen by the bishop or local ordinary. Also in monasteries of monks, it is prescribed that if abbots neglect, let the bishops of the places compel their compliance; and in convents where studies can be conveniently prosecuted, let there be also a lecturer on Scripture appointed, to be chosen from the most able professors. Moreover, in public universities, where this most honorable and most necessary of all lectures has not been instituted, let the piety and charity of religious princes and governments provide for it; so that the Catholic faith may be defended and strengthened, and sound doctrine protected and propagated. And where the lecture has been instituted, but discontinued, let it be re-established. Moreover, no one was to be appointed to this office, whose life, morals, and learning had not been examined and approved by the bishop of the place, &c.