Verse-by-Verse Bible Commentary

John 2:25

and because He did not need anyone to testify concerning man, for He Himself knew what was in man.
New American Standard Version

Bible Study Resources

Concordances:
Nave's Topical Bible - Jesus, the Christ;   Jesus Continued;   Scofield Reference Index - Resurrection;   Thompson Chain Reference - Heart;   Hearts Read;   Knowledge;   Knowledge, Divine;   Knowledge-Ignorance;   The Topic Concordance - Knowledge;   Torrey's Topical Textbook - Christ Is God;   Man;  
Dictionaries:
Bridgeway Bible Dictionary - Jesus christ;   Nicodemus;   Signs;   Charles Buck Theological Dictionary - Intercession of Christ;   Marriage;   Hastings' Dictionary of the Bible - Mary;   Hastings' Dictionary of the New Testament - Attributes of Christ;   Ave Maria;   Character of Christ;   Claim;   Considerateness;   Consolation;   Dates (2);   Endurance;   Foresight;   Heart;   Humanity of Christ;   Immortality (2);   Individuality;   Insight;   Logos;   Nathanael ;   Omniscience ;   Popularity;   Prophet;   Sympathy;   Wisdom of Christ;   Morrish Bible Dictionary - John, the Gospel by;   The Hawker's Poor Man's Concordance And Dictionary - Cana;   Passover;  
Devotionals:
Daily Light on the Daily Path - Devotion for May 25;   Every Day Light - Devotion for June 2;  

Albert Barnes' Notes on the Whole Bible

Should testify of man - Should give him the character of any man.

He knew what was in man - This he did because he had made all John 1:3, and because he was God, John 1:1. There can be no higher evidence than this that he was omniscient, and was therefore divine. To search the heart is the prerogative of God alone Jeremiah 17:10; and as Jesus knew what was in “these disciples,” and as it is expressly said that he knew what was in man - that is, in “all people” - so it follows that he must be equal with God. As he knows “all,” he is acquainted with the false pretentions and professions of hypocrites. None can deceive him. He also knows the wants and desires of all his real friends. He hears their groans, he sees their sighs, he counts their tears, and in the day of need will come to their relief.

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Barnes, Albert. "Commentary on John 2:25". "Barnes' Notes on the Whole Bible". https://www.studylight.org/commentaries/bnb/john-2.html. 1870.

Coffman Commentaries on the Bible

And because he needed not that any should bear witness concerning man; for he himself knew what was in man.

It will be recalled that Jesus instantly read the character of both Peter and Nathaniel. Our Lord looked right through those people in Jerusalem who, in the presence of his astounding miracles, readily conceded that he was the Messiah, but who discerned none of the moral implications of such a fact. Their first thought was: "Well, good! Let us see if he can throw the Romans out!"

The omniscience of the Lord is stated by the apostle in this verse; and, from the fact of John's bringing that attribute into the foreground at this particular juncture, it may be inferred that some of Jesus' disciples were a little disappointed that Jesus did not at once place himself at the head of that great throng of "believers" who had been so easily convinced by his miracles. Only in the true retrospective reflection of the apostle so long afterward would the true reason for the Lord's refusal become clear. Something more than belief has always been a prerequisite for becoming a true follower of the Lord; and that throng of "believers only" had nothing of that "something more" always required. That fatal lack was the thing Jesus discerned. These were doubtless some of the same people who shouted, "Crucify him!" when the Lord stood before Pilate. One additional thing, over and beyond faith only, required of all who would enter the kingdom of God is the new birth; and, appropriately, John next recorded Jesus' conversation with Nicodemus.

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Coffman Commentaries reproduced by permission of Abilene Christian University Press, Abilene, Texas, USA. All other rights reserved.
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Coffman, James Burton. "Commentary on John 2:25". "Coffman Commentaries on the Bible". https://www.studylight.org/commentaries/bcc/john-2.html. Abilene Christian University Press, Abilene, Texas, USA. 1983-1999.

John Gill's Exposition of the Whole Bible

And needed not that any should testify of man,.... Of this or the other man, that he was a good or a bad man; he needed no proofs to be made, or testimonies bore, or evidence given of men's characters and actions; he was of quick understanding, and could distinguish at once between a wicked man and a good man; and so had the characteristic which the Jews require of the Messiah; for they rejected Bar Cozba from being the Messiah, and slew him, because he could not smell, referring to Isaiah 11:3, or discern a bad man from a good manF14T. Bab. Sanhedrin, fol. 93. 2. ; but this Jesus could do, without any external evidence:

for he knew what was in man; which none but the spirit of a man can know; his inward thoughts, the secrets of the heart; thus Christ knew the thoughts of the Scribes and Pharisees, Matthew 9:4, being a discerner of the thoughts, and intents of the heart, Hebrews 4:12. This Apollonius Tyaneus, the ape of Christ, ascribed to himselfF15Philostrat. Vit. Apollonii, l. 1. c. 13. ; but is what is peculiar to God; and Christ being God, knows all that is in man; that there is no good in him naturally, nothing but what comes from his Father, is imparted by himself, or implanted by his Spirit; he knows the wickedness there is in man, that his heart is deceitful and desperately wicked, and full of all manner of iniquities; he knows in what condition all the and faculties of the souls of men are; what their affections are set upon, on earthly or heavenly things; whether there is any light in their understandings, or not; whether their wills are subdued and resigned to the will of God, or not; whether their minds and consciences are defiled, or their hearts are sprinkled from an evil conscience; in short, whether the internal good work of grace is begun upon their souls, or not; and he knows the secret springs of all actions, good and bad; all which prove his true and proper deity, and show him to be a suitable Saviour of sinners, and qualify him to be the Judge of the whole earth.

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The New John Gill's Exposition of the Entire Bible Modernised and adapted for the computer by Larry Pierce of Online Bible. All Rights Reserved, Larry Pierce, Winterbourne, Ontario.
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Bibliographical Information
Gill, John. "Commentary on John 2:25". "The New John Gill Exposition of the Entire Bible". https://www.studylight.org/commentaries/geb/john-2.html. 1999.

Geneva Study Bible

7 And needed not that any should testify of man: for he knew what was in man.

(7) Christ is the searcher of hearts, and therefore truly God.
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Beza, Theodore. "Commentary on John 2:25". "The 1599 Geneva Study Bible". https://www.studylight.org/commentaries/gsb/john-2.html. 1599-1645.

Commentary Critical and Explanatory on the Whole Bible

knew what was in man — It is impossible for language more clearly to assert of Christ what in Jeremiah 17:9, Jeremiah 17:10, and elsewhere, is denied of all mere creatures.

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This expanded edition of the Jameison-Faussett-Brown Commentary is in the public domain and may be freely used and distributed.
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Jamieson, Robert, D.D.; Fausset, A. R.; Brown, David. "Commentary on John 2:25". "Commentary Critical and Explanatory on the Whole Bible". https://www.studylight.org/commentaries/jfb/john-2.html. 1871-8.

Robertson's Word Pictures in the New Testament

And because he needed not (και οτι χρειαν ειχενkai hoti chreian eichen). Imperfect active, “and because he did not have need.”

That any one should bear witness concerning man (ινα τις μαρτυρησηι περι του αντρωπουhina tis marturēsēi peri tou anthrōpou). Non-final use of ιναhina with first aorist active subjunctive of μαρτυρεωmartureō and the generic article (περι του αντρωπουperi tou anthrōpou) concerning mankind as in the next clause also.

For he himself knew
(αυτος γαρ εγινωσκενautos gar eginōsken). Imperfect active, “for he himself kept on knowing” as he did from the start.

What was in man
(τι ην εν τωι αντρωπωιti ēn en tōi anthrōpōi). Indirect question with εστινestin of the direct changed to the imperfect ηνēn a rare idiom in the Koiné. This supernatural knowledge of man is a mark of deity. Some men of genius can read men better than others, but not in the sense meant here.

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The Robertson's Word Pictures of the New Testament. Copyright © Broadman Press 1932,33, Renewal 1960. All rights reserved. Used by permission of Broadman Press (Southern Baptist Sunday School Board)
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Robertson, A.T. "Commentary on John 2:25". "Robertson's Word Pictures of the New Testament". https://www.studylight.org/commentaries/rwp/john-2.html. Broadman Press 1932,33. Renewal 1960.

Vincent's Word Studies

He needed not ( οὐ χρείαν εἰχεν )

Literally, he had not need.

Testify ( μαρτυρήσῃ )

Rev., better, bear witness. The same word is in John 1:7, John 1:8, John 1:15, John 1:32(see on John 1:7).

Of man ( περὶ τοῦ ἀνθρώπου )

Better, as Rev., concerning man.

He knew ( αὐτὸς ἐγίνωσκεν )

The pronoun is expressed, and with a view to emphasis, as Rev., “He himself knew.” The imperfect expresses continuance: He was all along cognizant as the successive cases presented themselves; thus falling in with the next words, “what was in the man,” i.e., in each particular man with whom He had to do. No such characteristic as this was attributed to the gods of Paganism. “While, then, the gift of anything like general foreknowledge appears to be withheld from all the deities of invention, that of 'the discerner of the thoughts and intents of the heart,' is nowhere found; nor was it believed of any member of the Olympian community, as it was said of One greater than they, 'He knew all men, and needed not that any should testify of man, for He knew what was in man,'” (Gladstone, “Homer and the Homeric Age,” ii., 366).

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Vincent, Marvin R. DD. "Commentary on John 2:25". "Vincent's Word Studies in the New Testament". https://www.studylight.org/commentaries/vnt/john-2.html. Charles Schribner's Sons. New York, USA. 1887.

Wesley's Explanatory Notes

And needed not that any should testify of man: for he knew what was in man.

He — To whom all things are naked, knew what was in man - Namely, a desperately deceitful heart.

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Wesley, John. "Commentary on John 2:25". "John Wesley's Explanatory Notes on the Whole Bible". https://www.studylight.org/commentaries/wen/john-2.html. 1765.

The Fourfold Gospel

and because he needed not that any one should bear witness concerning man; for he himself knew what was in man1.

  1. For he himself knew what was in man. John gives us many examples of this supernatural knowledge which Jesus possessed. See John 1:42,47,48 John 3:3; John 4:29; John 6:61,64; John 11:4,14; John 13:11; John 21:17. This chapter itself gives us a faithful picture of "what was in man". We find in it temples, profaners, money-makers, sign-seekers, opposers of reform, false and weak professors of faith, etc., but none to whom Jesus could trust himself.

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These files are public domain and are a derivative of an electronic edition that is available on the Christian Classics Ethereal Library Website. These files were made available by Mr. Ernie Stefanik. First published online in 1996 at The Restoration Movement Pages.
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J. W. McGarvey and Philip Y. Pendleton. "Commentary on John 2:25". "The Fourfold Gospel". https://www.studylight.org/commentaries/tfg/john-2.html. Standard Publishing Company, Cincinnati, Ohio. 1914.

James Nisbet's Church Pulpit Commentary

CHRIST’S KNOWLEDGE OF MAN

‘He knew what was in man.’

John 2:25

No greater proof could be given of our Lord’s Divine nature than His marvellous knowledge of men’s hearts and ways. To know the secrets of men’s hearts is the prerogative of God alone, as it is written, ‘I the Lord search the heart, I try the reins, even to give every man according to his ways” (Jeremiah 17:10). But the Lord Jesus had this power: ‘He knew all men.’ Every one of those who lived in Judæa or Galilee, yea, even to the uttermost parts of the earth, were known to Him. ‘He knew what was in man.’ The most secret aim or imagination cherished in the recess of the soul, unknown and unsuspected even by the most intimate relative or friend, stands out before Christ plainly and distinctly without the least veil or covering.

I. What a help and encouragement to the sinner is the thought on which we are dwelling? Christ knows every secret of my heart. He knows every failing, every temptation, every root of mischief that is working in me. He knows each wrong desire which it is so hard to check. He knows the cause of that depression of spirit which sometimes overwhelms me. He knows those tendencies to anger, murmuring, envy, unbelief, which cause me so much distress. Moreover, He knows those longings for a higher and nobler life, those sighs over the sin that cleaves to me, those prayer-thoughts that arise to Him continually even when beset with temptations to evil which I abhor. The whole case lies open before Him. The evil that has been, that evil that is now, the evil that might yet arise, and whatever better thing His grace has given, all is perfectly known to Him. Is this no ground of confidence to the soul that would be saved, or to him who would rise to a much higher level than he has yet reached? The Saviour has come, and come close to you. He comes to give life, and to give it more abundantly. He comes to break down every barrier, to heal every disease, and to save even to the uttermost. And His perfect knowledge of you is one great element of hope. If He knows all that is amiss, you may be sure in His power and love He will heal and save you.

II. But Christ is coming again as the Judge of quick and dead. As King He shall sit upon the great white throne, and before Him shall be gathered all nations, and He shall separate them one from another, as a shepherd divides the sheep from the goats. And it is in this aspect that we see the solemn importance of Christ’s perfect knowledge of man. For, as He knows all, so will He reveal all. ‘We must all be made manifest before the judgment seat of Christ, that each one may receive the things done in his body, according to that he hath done, whether it be good or bad’ (2 Corinthians 5:10, R.V.). ‘In the day when God shall judge the secrets of men by Jesus Christ according to my Gospel’ (Romans 2:6). Imagine the man whose whole life has been given to accumulate wealth, and who has practised unnumbered acts of deceit and secret fraud in doing this. There has been an utter disregard of the claims of the workman, or the need of the widow, or the vast responsibility of his position. To get rich, to add thousands to thousands, has been the one aim, and all else has been sacrificed to this. How will such a man stand the test and answer for the utter neglect and abuse of the talent committed to him? Imagine the man who has borne a fair character in the world, and perchance has been regular in church and passed for a Christian, but yet all the time has been the slave of some hateful vice, and perhaps has drawn many others into the vortex of evil. Hidden now beneath the veil of a respectable exterior are multitudes of such as are but the grossest hypocrites in God’s sight. Like the Pharisees of old, they are as whited sepulchres. Outwardly they appear righteous before man, but within are full of corruption and iniquity.

—Rev. George Everard.

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Nisbet, James. "Commentary on John 2:25". Church Pulpit Commentary. https://www.studylight.org/commentaries/cpc/john-2.html. 1876.

John Trapp Complete Commentary

25 And needed not that any should testify of man: for he knew what was in man.

Ver. 25. For he knew what was in man] Artificers know the nature and properties of their works, and shall not Christ of the heart? He searcheth men’s hearts, and trieth the reins, which of all their inwards are the most inward; {a} besides that they are the seats and springs of all our thoughts and lusts. Deus intimior nobis intimo nostro, saith one, God is nearer to us than we are to ourselves, and knows our thoughts long before, as a gardener knows what flowers he shall have at spring, because he knows the roots.

{a} Nihil eorde ae renibus magis intimum; adeo ut per multos meatus atque incurvos anfractus deferri elaborati cibi debeant, antequam eo possint perduci.

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Trapp, John. "Commentary on John 2:25". John Trapp Complete Commentary. https://www.studylight.org/commentaries/jtc/john-2.html. 1865-1868.

Sermon Bible Commentary

John 2:25

The idea of a physician, when complete and considered apart from human imperfections, contains these three things: He must know the patient's constitution, his disease, and his cure. He must understand, (i.) what was the nature and capacity of the subject originally and before he was afflicted with disease; (ii.), the ailment under which he labours; and, (iii.) what will restore the diseased to health again. Jesus Christ knows—

I. What was in man as he came at first from his Creator's hand. God made man upright, and that uprightness is known to Him on whom our help has been laid. The Son of God knew that the constitution of humanity admitted of complete communion with God, as a child in a father's bosom, and yet complete submission to God's will, as the creature of His hand.

II. What was in man when he had fallen. Knowing the character of the perfect work, the Saviour knows also the amount of damage that it has sustained. He knows, also, the gravity of man's sin, as an event affecting all the plans of God, and the government of all intelligent beings. As the defection of a chief carries away all that owned his sway, the fall of man affected the condition and prospects of the universal kingdom.

III. Knowing the original constitution and the subsequent disease of the patient, the Physician knew also what would restore him, and was able to apply the cure. Knowing the worth of man as God had made him, our Physician would not abandon the wreck; but knowing how complete the wreck was, He bowed His heavens and came down to save. He united Himself to us, became bone of our bone and flesh of our flesh, that He might raise us up. He so knit Himself to His own on earth that if He should rise, so must they. Some lessons:—(1) Speaking of the individual and of the unconverted, He knows what is in man, and yet He does not cast out the unclean. Lepers were not allowed to dwell among the people, but He who is holy, harmless, and undefiled, welcomes the leprous to His bosom. (2) Speaking now of His own disciples, He knows what is in them, and with that knowledge, it is because He is God and not man, that He does not shake them off. (3) He knows what is in man, and therefore can make His Word and providence suitable. His providences, although for the time they may seem mysterious, all work together for our good. (4) He knows what is in man—in the secret chambers of each heart.

W. Arnot, The Anchor of the Soul, p. 125.


References: John 2:25.—Homilist, vol. vi., p. 263; W. G. Horder, Christian World Pulpit, vol. xxxii., p. 45. John 3:1.—G. T. Coster, Ibid., vol. xix., p. 61, John 3:1, John 3:2.—T. Foster, Ibid., vol. xviii., p 259; T. Hammond, Ibid., vol. xiii., p. 165. John 3:1-3.—J. Baldwin Brown, Ibid., vol. xix., p. 136. John 3:1-11.—Clergyman's Magazine, vol. ii., p. 18. John 3:1-15.—Ibid., p. 276; W. Landels, Christian World Pulpit, vol. xxix., p. 33. John 3:1-16.—Homiletic Quarterly, vol. i., p. 199. John 3:1-17.—Homilist, 3rd series, vol. ii., p. 329. John 3:2.—Christian World Pulpit, vol. iv., p. 181; Preacher's Monthly, vol. ix., p. 296; Clergyman's Magazine, vol. ii., p. 149.



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Nicoll, William R. "Commentary on John 2:25". "Sermon Bible Commentary". https://www.studylight.org/commentaries/sbc/john-2.html.

Expository Notes with Practical Observations on the New Testament

St. John's design in writing of this gospel being to assert the divinity of Christ, he scatters evidences of it in almost every chapter. Here he declares his omniscience, He knew what was in man; that is, being God blessed for ever, he had an exact knowledge of the hearts of men, not by any revelation of men's hearts from God, but by immediate intuition from himself. He knows all men, and all that is in men. See here an ample testimony of the divinity of Christ, his knowledge of the secrets of the hearts of all men, which is declared to be the undoubted property of God alone, Thou only knowest the hearts of all the children of men. 1 Kings 8:39

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Burkitt, William. "Commentary on John 2:25". Expository Notes with Practical Observations on the New Testament. https://www.studylight.org/commentaries/wbc/john-2.html. 1700-1703.

Hawker's Poor Man's Commentary

REFLECTIONS

How is it possible to behold my Lord, honoring the bridal feast with his presence and miracles without having the mind led to the consideration of that yet more astonishing miracle, when the Son of God first betrothed his Church to himself, in righteousness, in judgment, in loving kindness, and in mercies; and in faithfulness forever! Here I would say, as often as my soul reviews the vast mercy, here my Lord, my Ishi, my Husband, is indeed everlastingly blessing his Church with his presence; supplying every want, and turning all my water into wine. Lord! do thou daily manifest forth thy glory; and cause me by thy sweet influences, unceasingly to believe in thee.

Blessed Lord the Spirit! praised be thy name for this precious record of my Lord's zeal in purging his Temple. Do thou, Lord, so cleanse my heart; for thou hast said, the bodies of thy people are the temple of the Holy Ghost, which dwelleth in them. And if my God will drive out all the vain thoughts which lodge there, which like the buyers and sellers in the Temple, so defile my poor heart; then, by my Lord's indwelling presence, shall I be enabled to glorify God, in my body and in my spirit, which are his.

And praised be my Lord for the very precious sign he gave the Jews; and for the very precious confirmation of it which followed. Yes! thou glorious Lord; while both the power of God the Father, and God the Holy Ghost, were manifested in thy triumphs over death and the grave; thou wast most fully declared to be the Son of God with power, according to the Spirit o f holiness, by thy resurrection from the dead! And is it not by this same blessed testimony, the whole Church rests in hope for the sure accomplishment of the same in all thy mystical members! Hail! thou that art the resurrection and the life! Sure I am, that because thou livest, thy redeemed shall live also!

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Hawker, Robert, D.D. "Commentary on John 2:25". "Hawker's Poor Man's Commentary". https://www.studylight.org/commentaries/pmc/john-2.html. 1828.

Johann Albrecht Bengel's Gnomon of the New Testament

John 2:25. ὅτι) because.— τοῦ ἀνθρώπου· τῷ ἀνθρώπῳ, of man: in man) This is said of the whole race of men: in the preceding verse, of the individuals contained under it.— αὐτός) Himself, without any other testimony.— τί, what) to wit, treachery: every man is deceitful. The language of John has Euphemy.(48) In man [the natural man] there is what is human: in the new man there is what is divine, Christian, spiritual.

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Bengel, Johann Albrecht. "Commentary on John 2:25". Johann Albrecht Bengel's Gnomon of the New Testament. https://www.studylight.org/commentaries/jab/john-2.html. 1897.

Matthew Poole's English Annotations on the Holy Bible

And needed not any information concerning the principles and humours of all men; for he perfectly knew men, not only from their more external acts and behaviours, (as we know them), but he knew what was in them, searching the hearts, and trying the reins, which is the property of God alone, 1 Kings 8:39 Psalms 33:15. Here what we formerly observed is again observable, that oft times in holy writ, for the further confirmation of a proposition, to a universal affirmative is added a contrary negative. Here ariseth a question, agitated between the Lutherans and the Calvinists, Whether Christ as man knew all things, and what is in the heart of man. They affirm it, because of the personal union of the Divine and human natures in Christ. We say, that although there be such a personal union, yet the properties of each nature remain distinct; upon which account Christ denieth that he, as the Son of man, knew the day and hour of the end of the world. Besides, by the same reason that omniscience belongeth to the human nature of Christ, omnipotence, infiniteness, and omnipresence, also must; which last indeed they affirm, seeing that without it they were not able to defend their doctrine of consubstantiation, or the presence of the body and blood of Christ, wherever the sacrament of his supper is administered; but this being a matter polemical, we shall not here discourse it. Those who would be satisfied as to what is said on either side, may find enough in Gerard, Hunnius, and Farnovius, on the Lutherans’ side; and in Zanchius and others on the Calvinists’ side, Zanchius de Natura and Attributis Dei, lib. 3. cap. 2. qu. 16.

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Poole, Matthew, "Commentary on John 2:25". Matthew Poole's English Annotations on the Holy Bible. https://www.studylight.org/commentaries/mpc/john-2.html. 1685.

Justin Edwards' Family Bible New Testament

He knew what was in man; he knew the hearts of men, and how, under circumstances, they would act. Of course he knew in all respects how to treat them. Jeremiah 17:10; Revelation 2:23; John 1:1. The perfect knowledge of Jesus Christ gives him the fullest acquaintance with human character, shows him how in all respects to treat men while on earth, and fits him righteously and wisely to award to all the retributions of eternity.

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Edwards, Justin. "Commentary on John 2:25". "Family Bible New Testament". https://www.studylight.org/commentaries/fam/john-2.html. American Tract Society. 1851.

Whedon's Commentary on the Bible

25.Knew what was in man—Some men are penetrating judges of human character. But this is not what John means of this the Word made flesh. In this chapter, indeed, we have repeated instances of John’s view, that the glory of the Divine nature was continually shedding its rays through the tenement of flesh. The first miracle (John 2:11) manifested forth his glory; he claims all power to rebuild the demolished temple; and now he is described as knowing the secrets of our nature.

 

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Whedon, Daniel. "Commentary on John 2:25". "Whedon's Commentary on the Bible". https://www.studylight.org/commentaries/whe/john-2.html. 1874-1909.

E.W. Bullinger's Companion Bible Notes

testify = bear witness. See note on John 1:7.

what was in man. This attribute elsewhere attributed only to Jehovah (Jeremiah 17:10; Jeremiah 20:12). Here this knowledge was universal ("all", John 2:24), and individual ("man ").

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Bullinger, Ethelbert William. "Commentary on John 2:25". "E.W. Bullinger's Companion bible Notes". https://www.studylight.org/commentaries/bul/john-2.html. 1909-1922.

Commentary Critical and Explanatory on the Whole Bible - Unabridged

And needed not that any should testify of man: for he knew what was in man.

And needed not [`And because He needed not' Kai (G2532) hoti (G3754) ou (G3756) chreian (G5532) eichen (G2192)] that any should testify of man: for He knew, [ autos (Greek #846) gar (Greek #1063)]. The language is emphatic, as in the previous verse: 'For Himself knew'

What was in man - in other words, that all-penetrating perception of what was in man resided in Himself; the strongest possible expression of absolute knowledge of man, as in John 1:18 of God.

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Jamieson, Robert, D.D.; Fausset, A. R.; Brown, David. "Commentary on John 2:25". "Commentary Critical and Explanatory on the Whole Bible - Unabridged". https://www.studylight.org/commentaries/jfu/john-2.html. 1871-8.

Ellicott's Commentary for English Readers

(25) And needed not.—Better, and because He needed not.

For he knew.—Better, for He of Himself knew. The verse is a wider statement of the general truth of which John 2:24 is a particular instance. He did not in that instance need any testimony of spiritual state and character, because He then, as always, read what was in man.

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Bibliographical Information
Ellicott, Charles John. "Commentary on John 2:25". "Ellicott's Commentary for English Readers". https://www.studylight.org/commentaries/ebc/john-2.html. 1905.

Treasury of Scripture Knowledge

And needed not that any should testify of man: for he knew what was in man.
Reciprocal: Genesis 18:13 - Wherefore;  Genesis 18:15 - Nay;  Deuteronomy 8:2 - to know;  Deuteronomy 31:21 - I know;  Joshua 22:22 - he knoweth;  2 Samuel 7:20 - knowest;  1 Kings 8:39 - for thou;  1 Chronicles 28:9 - the Lord;  2 Chronicles 6:30 - thou only;  Job 10:6 - GeneralJob 11:11 - he knoweth;  Job 42:2 - no;  Psalm 139:2 - understandest;  Proverbs 15:11 - the hearts;  Proverbs 21:2 - the Lord;  Jeremiah 17:10 - the Lord;  Ezekiel 11:5 - for;  Amos 4:13 - and declareth;  Matthew 9:2 - seeing;  Matthew 9:4 - knowing;  Matthew 12:25 - Jesus;  Matthew 16:8 - when;  Matthew 22:18 - perceived;  Mark 2:5 - saw;  Mark 2:8 - when;  Mark 8:17 - knew;  Mark 9:33 - What;  Mark 12:15 - knowing;  Mark 14:15 - he will;  Luke 5:20 - he saw;  Luke 6:8 - But;  Luke 9:47 - perceiving;  Luke 11:17 - knowing;  Luke 16:15 - God;  Luke 20:23 - he;  Luke 22:12 - he;  John 1:42 - Thou art;  John 1:48 - when;  John 4:16 - Go;  John 5:42 - I know;  John 6:15 - perceived;  John 6:61 - GeneralJohn 6:64 - For;  John 13:11 - GeneralJohn 16:19 - Jesus;  John 21:17 - Lord;  Acts 1:24 - Lord;  Acts 15:8 - which;  2 Corinthians 11:11 - God;  1 Thessalonians 2:4 - but God;  1 John 3:20 - and;  Revelation 2:23 - I am

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Text Courtesy of BibleSupport.com. Used by Permission.
Bibliographical Information
Torrey, R. A. "Commentary on John 2:25". "The Treasury of Scripture Knowledge". https://www.studylight.org/commentaries/tsk/john-2.html.

Calvin's Commentary on the Bible

25.For he knew what was in man. As it might be doubted whence Christ obtained this knowledge, the Evangelist anticipates this question, and replies that Christ perceived every thing in men that is concealed from our view, so that he could on his own authority make a distinction among men. Christ, therefore, who knows the hearts, had no need of any one to inform him what sort of men they were. He knew them to have such a disposition and such feelings, that he justly regarded them as persons who did not belong to him.

The question put by some — whether we too are authorized by the example of Christ to hold those persons as suspected who have not given us proof of their sincerity — has nothing to do with the present passage. There is a wide difference between him and us; for Christ knew the very roots of the trees, but, except from the fruits which appear outwardly, we cannot discover what is the nature of any one tree. Besides, as Paul tells us, that charity is not suspicious, (1 Corinthians 13:5,) we have no right to entertain unfavorable suspicions about men who are unknown to us. But, that we may not always be deceived by hypocrites, and that the Church may not be too much exposed to their wicked impostures, it belongs to Christ to impart to us the Spirit of discretion.

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These files are public domain.
Bibliographical Information
Calvin, John. "Commentary on John 2:25". "Calvin's Commentary on the Bible". https://www.studylight.org/commentaries/cal/john-2.html. 1840-57.