The interpretation timeline
John 16:12 Douay-Rheims

I have yet many things to say to you: but you cannot bear them now.

A.D. 398 – 1871 9 witnesses 12 excerpts

Patristic

before A.D. 750
398
A.D.
Didymus the Blind Patristic
c. A.D. 313–398
“(Didym. de Spir. Sanct. ut sup.) To receive must be taken here in a sense agreeable to the Divine Nature. As the Son in giving is not deprived of what He gives, nor imparts to others with any loss of His own, so too the Holy Ghost does not receive what before He had not; for if He received what before He had not, the gift being transferred to another, the giver would be thereby a loser. We must understand then that the Holy Ghost receives from the Son that which belonged to His nature, and that there are not two substances implied, one giving, and the other receiving, but one substance only. In like manner the Son too is said to receive from the Father that wherein He Himself Subsists. For neither is the Son any thing but what is given Him by the Father, nor the Holy Ghost any substance but that which is given Him by the Son.”
Source
407
A.D.
John Chrysostom Patristic
A.D. 347–407
“(Hom. lxxviii) Having said then, Ye cannot bear them now, but then ye shall be able, and, The Holy Spirit shall lead you into all truth; lest this should make them suppose that the Holy Spirit was the superior, He adds, For He shall not speak of Himself but whatsoever He shall hear, that shall He speak.”
“(Hom. lxxviii. 2) In this way then He raised their spirits; for there is nothing for which mankind so long, as the knowledge of the future. He relieves them from all anxiety on this account, by shewing that dangers would not fall upon them unawares. Then to shew that He could have told them all the truth into which the Holy Spirit would lead them, He adds, He shall glorify Me.”
Source
430
A.D.
Augustine of Hippo Patristic
A.D. 354–430
“(ii. de Trin. c. iii) But it does not follow from hence that the Holy Spirit is inferior: for it is only signified that He proceeds from the Father.”
“(Tr. xcix) Nor let the use of the future tense perplex you: that hearing is eternal, because the knowledge is eternal. To that which is eternal, without beginning, and without end, a verb of any tense may be applied. For though an unchangeable nature does not admit of was, and shall be, but only is, yet it is allowable to say of It, was, and is, and shall be; was, because It never began; shall be, because It never shall end; is, because It always is.”
Source
“(Tr. c) By pouring love into the hearts of believers, and making them spiritual, and so able to see that the Son Whom they had known before only according to the flesh, and thought a man like themselves, was equal to the Father. Or certainly because that love filling them with boldness, and casting out fear, they proclaimed Christ to men, and so spread His fame throughout the whole world. For what they were going to do in the power of the Holy Ghost, this the Holy Ghost says He does Himself.”
Source

Scholastic

c. 1100 – 1500
1107
A.D.
c. 1055–1107
“Our Lord having said above, It is expedient for you that I go away, He enlarges now upon it: I have yet many things to say unto you, but ye cannot bear them now.”
1270
A.D.
Thomas Aquinas Catholic
1225–1274
“Above, the Lord consoled the apostles by the promise of the Holy Spirit; here he shows the benefit which the Holy Spirit, upon coming, will bring to them. And he sets down a threefold benefit: one on the part of the world, another on the part of the disciples, and a third on the part of Christ. On the part of the world, indeed, because the Holy Spirit, upon coming, will convict the world; on the part of the disciples, because he will instruct them, at the place "I have yet many things to say to you," etc.; on the part of Christ, because he will glorify him, at the place "he shall glorify me," etc. Concerning the first he does two things. First he sets down the benefit of the coming of the Holy Spirit as regards the world; second he expounds it, at the place "of sin indeed, because they have not believed in me." He says therefore: it is expedient for you that I go, because I will send the Holy Spirit to you, and, when he has come, he will convict the world of sin, and of justice, and of judgment. This is read in two ways: in one way according to Augustine, in another way according to Chrysostom. According to Augustine indeed in this way: "when he has come," namely the Holy Spirit, "he will convict," that is, reprove, the world; Proverbs 9:8: "Rebuke a wise man, and he will love you." But does not Christ also convict the world? He does indeed convict it, above, 8:41: "you are of your father the devil," and Matthew 23, saying many things against the Pharisees and Scribes. Why then does he say "he will convict," as though he himself had not convicted? But perhaps someone would say that Christ convicted only the Jews, while the Holy Spirit, in the disciples and through the disciples, convicts the whole world. But this is contradicted by the fact that Christ speaks in the apostles and through the apostles just as the Holy Spirit does; 2 Corinthians (last chapter), 13:3: "you seek a proof of Christ who speaks in me." And therefore it must be said that he said "he will convict the world" of him who, invisibly penetrating your hearts, will pour out charity in them, by which, fear being driven out, you will have the power of convicting. For as long as the disciples were carnally attached to Christ, the Holy Spirit was not in them, as has been said, in the manner in which he was afterward; and therefore they were not as bold as they were after his coming; Psalm 32:6: "by the spirit of his mouth was all the power of them," namely of the apostles; 2 Chronicles 24:20: "the spirit of the Lord clothed Zechariah." He also will convict the world, because, filling the hearts which before had been worldly, he brought it about that they reproved themselves; Job 13:15: "I will argue my ways in his sight," etc. And this the Holy Spirit does; Psalm 50:12: "renew a right spirit within my bowels." But of what will he convict? Of three things. Of the sin which they committed; Isaiah 58:1: "announce to my people their wicked deeds," etc. And this the apostles did; Psalm 18:5: "their sound has gone out into all the earth." Likewise of the justice which they neglected; Isaiah 29: "they have not done justice," etc. And this the apostles did: Romans 3:10: "there is not one that is just." Likewise of the judgment which they despised: for as it is said in Proverbs 18:3, "the wicked man, when he has come into the depth of sins, despises"; Ezekiel 5:6: "she has despised my judgments," etc. Here he expounds. And first, what he says concerning sin, namely "because they have not believed in me." He convicts only of the sin of unbelief, because through faith all other sins are forgiven, Matthew 25:35ff. The Lord imputes to the damned only the lack of mercy, because through mercy all sins are purged; Proverbs 15:27: "by mercy and faith sins are purged." So therefore here too: because while unbelief remains, the other sins are retained, and when it departs the others are forgiven. Now he says "because they have not believed in me," and he does not say "believed me" or "believed him," because the demons believe that Christ exists, and tremble; James 2:19. But "in me," through faith formed by hoping and loving. Second, concerning justice, namely "because I go to the Father," etc. This indeed can be expounded in two ways: either concerning the justice of Christ, or concerning the justice of the apostles. Concerning the justice of the apostles thus: he convicts the world of our justice, which they have not imitated. I mean the justice not from the law, but from faith; Romans 3:22: "but the justice of God through faith in Jesus Christ." But faith concerns things unseen: Hebrews 11:1. Now the disciples saw one thing, namely his humanity, and did not see another, namely his divinity; but this he promises them as a reward; above, 14:21: "I will manifest myself to them." The disciples, therefore, had faith concerning Christ only as regards the divinity; but when the humanity of Christ was withdrawn from them, then their faith concerned both; and therefore, according to Augustine on John, he says "because I go to the Father, and now you shall not see me," as if he were to say: you believe in me as regards the divinity, and, because I go to the Father, you will believe in me also as regards the humanity — which justice of faith indeed the world does not imitate. But he says "and now you shall not see me": not that they were never to see him, but because they were not going to see him in this mortal flesh. They saw him at the resurrection, but existing as immortal; and they will see him at the judgment, but coming in majesty. Concerning the justice of Christ, he expounds it in the work On the Words of the Lord. For the Jews were unwilling to acknowledge that Christ was just; above, 9:24: "we know that this man is a sinner." He will convict them of this justice, saying "because I go to the Father": because this very fact, that I go to the Father, belongs to my justice. For that Christ descended was of mercy; but that he ascended was owed to his justice; Philippians 2:9: "for which cause God also has exalted him," etc. Third, he convicts the world of judgment; and this because "the prince of this world" — that is, the devil, who is the prince of the world, that is, of worldly men, not by creation, but by suggestion and imitation; Wisdom 2:25: "they imitate him who are of his side"; Job 41:25: "he is king over all the children of pride" — this prince, therefore, "has already been judged," that is, cast out; above, 12:31: "now is the judgment of the world," that is, on behalf of the world, "now shall the prince of this world be cast out." And he says this in order to remove the excuse of men, who excuse themselves of their sins on account of the temptation of the devil; as if he were to say: they cannot be excused, because the devil has been expelled, through the grace and faith of Christ and the Holy Spirit, from the hearts of the faithful, so that he no longer tempts from within as before, but is permitted to tempt only from without, through trial; and therefore those who wish to cling to Christ can resist him. And hence it is that weak women have conquered the devil, by whom nevertheless the strongest men have been overcome. Of this judgment, therefore, the world is convicted, because, unwilling to resist, it is conquered by the devil, and brings back, through consent to sin, him whom it had expelled from itself; Romans 6:12: "sin does not reign in your mortal body." Or otherwise, according to the same Augustine in the book On the Words of the Lord, what he says, "has already been judged," is to be understood of the judgment of condemnation; that is, he himself has already been condemned, and consequently all who cling to him; Matthew 25:41: "depart, you cursed, into everlasting fire, which was prepared for the devil and his angels." The world is also convicted concerning judgment: because, knowing that the prince of this world has been condemned, it does not itself escape this judgment either; but it is judged along with its prince, since it imitates one who is proud and impious. According to Chrysostom, it is expounded differently from the very beginning: "when he has come," namely the Holy Spirit, "he will convict," that is, prove against, "the world of sin"; as if he were to say: the Holy Spirit himself will be a kind of proof against the world; Hebrews 2:4: "God also bearing witness by signs and wonders," etc. And concerning this sin he will show that they sinned gravely "because they have not believed in me," when they see that the Holy Spirit is given in my name to the faithful; Acts 5:32: "we are witnesses of this thing, and the Holy Spirit, whom God has given to all who obey him." Concerning justice, namely which I have, which nevertheless the world did not reckon me to have: and this, because I go to the Father, and will send you the Spirit, namely who will show that I have led a just and blameless life; above, 15:26: "whom I will send you from the Father, the Spirit of truth." Because this is said in Psalm 67:19: after Christ ascended on high, he gave gifts to men. Concerning judgment: because "the prince of this world has already been judged"; that is, from this very fact that he is judged, that is, expelled, through the Holy Spirit, from the hearts of the faithful; Zechariah 13:2: "I will cast out the unclean spirit"; 1 Corinthians 2:12: "we have not received the spirit of this world, but the Spirit who is from God." And concerning this judgment he will convict them, because they themselves wrongly judged that he had a devil, and that he cast out devils by Beelzebub: of which they will be convicted, because the Holy Spirit whom I will send will condemn and cast out the devil himself. Here he sets down the benefit of the coming of the Holy Spirit on the part of the disciples, which is their instruction; and first he sets down the necessity of instruction; second he promises the instruction, at the place "but when that Spirit of truth has come, he will teach you all truth"; third he excludes a doubt, at the place "for he shall not speak of himself." He says therefore: the coming of the Holy Spirit will be useful to the world, because he will convict it. But it will also be useful to you for instruction; of which instruction indeed you stand in need, "because I have many things to say to you, but you cannot bear them now": as if he were to say, I have instructed you, but you are not filled up; Job 26:14: "behold, these things are said in part of his works: and seeing we have heard scarcely a little drop of his word, who shall be able to behold the thunder of his greatness?" But to ask what these many things are which they were not able to bear is foolish, as Augustine says. For if they themselves were not able to bear them, much more are we also unable. Yet this saying, "you cannot bear them now," various heretics take up as a covering for their own error, in that to those who cling to them they say in secret certain most shameful things, which they would not dare to say openly — as though these very things were what the disciples could not then bear, and the Holy Spirit taught things which the spirit of man is ashamed to teach and preach openly. It is not, therefore, to be understood that certain secrets of doctrine are kept silent from the little ones among the faithful, to be taught separately to those who are greater, but the things which belong to the faith are set forth to all the faithful; Matthew 10:27: "that which you have heard in the ear, preach upon the housetops." But they must be set forth to the unlearned in one way, and to the experienced in another; just as the subtle points concerning the mystery of the incarnation, and other such things, are not to be set forth to the unlearned, because, being unable to understand them, they would be scandalized. All the things, therefore, which belonged to the faith, the Lord set forth to them, but not in the manner in which he afterward revealed them, and especially not as in eternal life. So, therefore, the things which they could not bear are the full knowledge of divine things, which they did not have then — for instance, the equality of the Son to the Father, and things of this kind. Whence Paul, 2 Corinthians 12:4: "I heard secret words, which it is not granted to man to utter," which were not concerning any truth other than that of faith, but in a higher manner. Likewise the spiritual understanding of all the Scriptures, which they did not have then, but when "he opened their understanding, that they might understand the Scriptures": Luke, last chapter, 24:45. Likewise the sufferings and dangers which they were to undergo, which they could not bear then, because their minds were weak; Ecclesiasticus 6:26: "put your shoulder under her, and bear her." So, therefore, instruction was necessary for them. Here he promises them the instruction which they will obtain at the coming of the Holy Spirit, who will teach them all truth. For since he is from the truth, it belongs to him to teach the truth, and to make them like to his principle. And he says "all truth," namely of the faith, which he will teach through a certain elevated understanding in this life, and the same fully in eternal life, where "we shall know even as we are known": 1 Corinthians 13:12, and 1 John 2:27: "the anointing will teach you," etc. Or "all truth" of the figures of the Law, which the disciples obtained through the Holy Spirit. Whence Daniel 1:17, it is said that the Lord gave to those children wisdom and understanding. Here he excludes a doubt which could arise: if the Holy Spirit will teach them, it seems that he would be greater than Christ; which is not so, because he will teach them by the power of the Father and the Son, for "he shall not speak of himself," but from me, because it will be from me. For just as the Son does not operate of himself but from the Father, so the Holy Spirit, because he is from another, namely from the Father and the Son, will not speak of himself, but whatever he shall hear — receiving knowledge, as also essence, from eternity — this he will speak, not bodily, but by illuminating inwardly in the mind; Hosea 2:14: "I will lead her into solitude, and will speak to her heart"; Psalm 84:9: "I will hear what the Lord God speaks in me." But since he has heard from eternity, what is this, that it says "he shall hear," in the future tense? But it must be said that eternity includes every time; and therefore the Holy Spirit, who hears from eternity, can be said to hear in the present, in the past, and in the future. Yet nevertheless he is sometimes said to hear in the future because those things of which he has knowledge are future. He will speak, therefore, whatever he shall hear, because he will teach not only eternal things, but future things; and therefore he adds: "and the things that are to come, he will declare to you," which is proper to the divinity; Wisdom 8:8: "she knows signs and wonders before they are done"; Isaiah 41:23: "declare to us the things that are to come; and we shall know that you are gods." For this is proper to the Holy Spirit; Joel 2:28: "I will pour out my spirit upon all flesh, and your sons and your daughters shall prophesy." Now the apostles had the spirit of prophecy. Or, "he will teach all truth," namely of the figures. But lest they should doubt how they would know about the future tribulations which he had foretold to them, therefore he adds "and the things that are to come," namely upon you, "he will declare to you."”

Reformation

c. 1500 – 1650
1637
A.D.
1567–1637
“I have yet many things to say unto you (of the mysteries of the faith, of the conversion of the Gentiles, of the foundation and government of the Church, of the institution of priests and bishops, and the whole ecclesiastical hierarchy), but ye cannot bear them now . Your mind cannot take in such weighty matters, both because it is weak and ill-informed, and so accustomed to the carnal ordinances of the Jews, as to be unable to conceive such lofty and spiritual subjects ; and also because it is entirely occupied with sorrow, which keeps it from rising to the apprehension of so many and such noble subjects. But I will send the Holy Spirit, who will by His enlightenment make you capable of hearing and comprehending them. So S. Chrysostom, Cyril, Theophylact, and S. Augustine. Christ encourages His Apostles to lift up their hearts, and cherish the desire of apprehending these great mysteries by the coming of the Holy Spirit We may thence infer that the Apostles and the Church advanced only by degrees in the knowledge of the mysteries of the faith, as the light of the sun gradually increases from dawn to mid-day. (See Cant vi. 9.) And every believer gradually grows in faith and holiness, as is said Prov. iv. 18”
Source

Post-Reformation

c. 1650 – 1900
1771
A.D.
John Gill Reformed
1697–1771
“He shall glorify me,.... In the ministration of the Gospel, which is "the ministration of the Spirit", Co2 3:8; and asserts Christ to be God over all, to have all that the Father hath, to be possessed of all divine perfections, to have the fulness of the Godhead dwelling in him; ascribes the same works and worship to him as to, the Father; and, as in a glass, holds him forth to be beheld as the brightness of his glory, and his glory to be seen in it, as the glory of the only begotten of the Father, full of grace and truth: it declares him to be the only Saviour and Redeemer of lost sinners, that justification is solely by his righteousness, pardon by his blood, and atonement by his sacrifice; and which ministration the Spirit makes effectual to the bringing of many souls to Christ to believe in him, profess his name, and expect life and salvation from him, by all which he is glorified. Moreover, the Spirit of God glorifies Christ in the experience of the saints, by leading them to him for righteousness, peace, and pardon, for grace, and fresh supplies of it, for wisdom and strength, for food and rest, for life and happiness; and by enabling them to live by faith on him, on whom he has encouraged them to venture, and to whom they have committed their all; and by instructing them to glory in him, as their wisdom, righteousness, sanctification, and redemption; and by ascribing the glory of their salvation to him, and by making continual application to him, under his direction and influence; by leaning on him, and expecting every good thing from him both for time and eternity. The particular instance in which he glorifies Christ, follows, for he shall receive of mine, and shall show it unto you; which is to be understood not of gifts Christ received from his Father, and which he gives to men by his Spirit; nor of internal grace, as faith, love, &c. which the Spirit from Christ works in the hearts of men; but either of the doctrines of the Gospel, the deep things of God and Christ, which the Spirit searches, and reveals in the ministration of the word. The Gospel is a sort of a "Kabala", though of a different kind from the oral law of the Jews. Christ received it from the Father, the Spirit received it from Christ, the apostles received it from the Spirit, and the churches of Christ from them in succeeding generations: or this may be understood of the blessings of grace held forth in the Gospel, such as justification, pardon, adoption, &c. which are in Christ; and which the Spirit from Christ takes and shows to the saints, and witnesses their special and particular interest in, and so comforts them, and glorifies Christ.”
Source
1832
A.D.
Adam Clarke Methodist
1762–1832
“Ye cannot bear them now - In illustration of these three points, Christ had many things to say; but he found that his disciples could only bear general truths; yet, in saying what he did, he sowed the seeds of the whole system of theological knowledge, and heavenly wisdom, which the Holy Spirit of this truth afterwards watered and ripened into a glorious harvest of light and salvation, by the ministry of the apostles. Dr. Lightfoot supposes that the things which the apostles could not bear now were such as these: 1. The institution of the Christian Sabbath, and the abolition of the Jewish. 2. The rejection of the whole Jewish nation, at the very time in which they expected to be set up and established for ever. 3. The entire change of the whole Mosaic dispensation, and the bringing the Gentiles into the Church of God.”
Source
1871
A.D.
1871
“when he, the Spirit of truth, is come . . . he shall not speak of himself--that is, from Himself, but, like Christ Himself, "what He hears," what is given Him to communicate. he will show you things to come--referring specially to those revelations which, in the Epistles partially, but most fully in the Apocalypse, open up a vista into the Future of the Kingdom of God, whose horizon is the everlasting hills.”
Source
Modern · 1953 →

The in-app commentary runs from the Fathers to the early-modern record, then stops — that's where the public-domain sources end, not where the reading does. For the modern reading, follow the sources directly.