Hebrews 4:12
For the word of God is living and effectual, and more piercing than any two edged sword; and reaching unto the division of the soul and the spirit, of the joints also and the marrow, and is a discerner of the thoughts and intents of the heart.
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The verse in its languages
- Vulgate (Clementine)
- Vivus est enim sermo Dei, et efficax et penetrabilior omni gladio ancipiti : et pertingens usque ad divisionem animæ ac spiritus : compagum quoque ac medullarum, et discretor cogitationum et intentionum cordis.
- Greek New Testament (SBLGNT)
- Ζῶν γὰρ ὁ λόγος τοῦ θεοῦ καὶ ἐνεργὴς καὶ τομώτερος ὑπὲρ πᾶσαν μάχαιραν δίστομον καὶ διϊκνούμενος ἄχρι μερισμοῦ ψυχῆς καὶ πνεύματος, ἁρμῶν τε καὶ μυελῶν, καὶ κριτικὸς ἐνθυμήσεων καὶ ἐννοιῶν καρδίας·
Haydock's commentary
For the word of God is living, &c. Some understand by the word of God, the eternal word, or Son of God: (to whom may apply all in the 12th and 13th verses) but others rather expound it of the words, promises, and menaces of God, either foretold by the prophets, or preached by the apostles. (Witham)
All this language is metaphorical, but perfectly well understood by the Jews. In their sacrifices, the Levites made use of a two-edged knife to separate from the victim what was for God, what was for the priests, and what was for the people. Thus in sacrificing sinners to the justice of God, Jesus Christ, like a two-edged knife, will separate what is for God, and what is for man; i.e. whatever is good or evil in the whole of man's conduct.
From Haydock's Catholic Bible Commentary, 1859, in the transcription made by Todd Easton and kept online by John Paul Wohlschied at johnblood.gitlab.io/haydock.
The Fathers on this verse
Origen Origen's Commentary on the Gospel of John, Chapter XXXVI
The texts of the New Testament, which we have discussed, are things said by Himself about Himself. Isaiah, however, He said that His mouth had been set by His Father as a sharp sword, and that He was hidden under the shadow of His hand, made like to a chosen shaft and kept close in the Father’s quiver, called His servant by the God of all things, and Israel, and Light of the Gentiles. The mouth of the Son of God is a sharp sword, for “The word of God is living, and active, and sharper than any two-edged sword, and piercing to the dividing of soul and spirit, of both joints and marrow, and quick to discern the thoughts and intents of the heart.” And indeed He came not to bring peace on the earth, that is, to corporeal and sensible things, but a sword, and to cut through, if I may say so, the disastrous friendship of soul and body, so that the soul, committing herself to the spirit which w …
St Augustine City of God, Utterances of the Prophet Isaiah Regarding the Resurrection of the Dead and the Retributive Judgment
But because he said, “Your heart shall rejoice,” lest we should suppose that the blessings of that Jerusalem are only spiritual, he adds, “And your bones shall rise up like a herb,” alluding to the resurrection of the body, and as it were supplying an omission he had made. For it will not take place when we have seen; but we shall see when it has taken place. For he had already spoken of the new heavens and the new earth, speaking repeatedly, and under many figures, of the things promised to the saints, and saying,“There shall be new heavens, and a new earth: and the former shall not be remembered nor come into mind; but they shall find in it gladness and exultation. Behold, I will make Jerusalem an exultation, and my people a joy. …
St Augustine Expositions on the Book of Psalms, Psalm CXLIX
8. “And swords sharpened on both sides in their hands.” This sort of weapon contains a great mystical meaning, in that it is sharp on both sides. By “swords sharpened on both sides,” we understand the Word of the Lord: it is one sword, but therefore are they called many, because there are many mouths and many tongues of the saints. How is it two edged? It speaks of things temporal, it speaks also of things eternal. In both cases it proveth what it saith, and him whom it strikes, it severeth from the world. Is not this the sword whereof the Lord said, “I am not come to send peace upon earth, but a sword”? Observe how He came to divide, how He came to sever. He divideth the saints, He divideth the ungodly, He severeth from thee that which hindereth thee. …
St John Chrysostom An Exhortation to Theodore After His Fall, Letter II
Now if thy zeal had been concerned with worldly eloquence, and then thou hadst given it up in despair, I should have reminded thee of the law courts and the judgment seat and the victories achieved there and the former boldness of thy speech, and should have exhorted thee to return to your labours in that behalf: but inasmuch as our race is for heavenly things, and we take no account of the things which are on earth, I put thee in remembrance of another court of justice, and of that fearful and tremendous seat of judgment; “for we must all be made manifest before the judgment seat of Christ.” “And He will then sit as judge who is now disregarded by thee. …
St John Chrysostom Homilies on First Corinthians, Homily XI
[6.] Seeing then that not even where we “know nothing against ourselves,” can we be clean from accusations, and where we do any thing good, but do it not of a right mind, we are liable to punishment; consider how vastly men are deceived in their judgments. For all these matters are not be come at by men, but by the unsleeping Eye alone: and though we may deceive men, our sophistry will never avail against Him. Say not then, darkness is around me and walls; who seeth me? For He who by Himself formed our hearts, Himself knoweth all things. ( Ps. cxxxix. 12 .) “For darkness is no darkness with Him.” And yet he who is committing sin, well saith, “Darkness is around me and walls;” for were there not a darkness in his mind he would not have cast out the fear of God and acted as he pleased. …
St John Chrysostom The Commentary and Homilies of St. John Chrysostom on Galatians and Ephesians, Ephesians 6:14-17
As the word of God has power to do all things, so also has he who has the spiritual gift. “For the word of God,” saith he, “is living, and active and sharper than any two-edged sword.” ( Heb. iv. 12 .) Now mark the wisdom of this blessed Apostle. He hath armed them with all security. What then is necessary after that? To call upon the King, that He may stretch forth His hand. “With all prayer, and supplication, praying at all seasons in the Spirit”; for it is possible “to pray” not “in the Spirit,” when one “uses vain repetitions” ( Matt. vi. …
St John Chrysostom The Homilies of St. John Chrysostom on Philippians, Colossians, and Thessalonians, Philippians 2:5-8
Our Lord Jesus Christ, when exhorting His disciples to great actions, places before them Himself, and the Father, and the Prophets, as examples; as when He says, “For thus they did unto the Prophets which were before you” ( Matt. v. 12; Luke vi. 23 .); and again, “If they persecuted Me, they will also persecute you” ( John xv. 20 .); and, “Learn of me, for I am meek” ( Matt. xi. 29 .); and again, “Be ye merciful, as your Father which is in heaven is merciful.” ( Luke vi. 36 .) This too the blessed Paul did; in exhorting them to humility, he brought forward Christ. And he does so not here only, but also when he discourses of love towards the poor, he speaks in this wise. “For ye know the grace of our Lord Jesus Christ, that though He was rich, yet for your sakes He became poor.” ( 2 Cor. viii. …
St John Chrysostom The Homilies of St. John Chrysostom on Philippians, Colossians, and Thessalonians, Philippians 2:12-16
And how may this fear be produced? If we but consider that God is everywhere present, heareth all things, seeth all things, not only whatsoever is done and said, but also all that is in the heart, and in the depth of the soul, for He is “quick to discern the thoughts and intents of the heart” ( Heb. iv. 12 .), if we so dispose ourselves, we shall not do or say or imagine aught that is evil. Tell me, if thou hadst to stand constantly near the person of a ruler, wouldest not thou stand there with fear? and how standing in God’s presence, dost thou laugh and throw thyself back, and not conceive fear and dread? Let it never be that thou despisest His patient endurance, for it is to bring thee to repentance that He is longsuffering. …
St John Chrysostom The Homilies of St. John Chrysostom on Philippians, Colossians, and Thessalonians, Colossians 1:9,10
Why then deceive we ourselves? See, thou sayest these things to me. What wilt thou say to God, “that fashioned our hearts one by one” ( Ps. xxxiii. 15 .); that knoweth everything that is in the mind; “that is living and active, and sharper than any two-edged sword”? ( Heb. iv. 12 .) For tell me with truth; Dost thou not condemn thyself? And how should wisdom so great, as that one who sins should condemn himself, come by chance, for this is a work of mighty wisdom. Thou condemnest thyself. And will he who giveth thee such thoughts leave everything to go on at hazard? The following rule then will hold universally and strictly. Not one of those who live in virtue wholly disbelieves the doctrine of the Judgment, even though he be Greek or heretic. None, save a few, of those who live in great wickedness, receives the doctrine of the Resurrection. …
St John Chrysostom The Homilies of St. John Chrysostom on the Epistle to the Hebrews, Hebrews 3.7-11
Then, lest any think that they will simply be deprived of rest only, he adds also the punishment, saying ( c. iv. 12 ), “For the Word of God is quick, and powerful; and sharper than any two-edged sword, and pierceth even to the dividing asunder of soul and spirit, and of the joints and marrow: and is a discerner of the thoughts and intents of the heart.” Here he is speaking of Hell and of punishment. “It pierceth” (he says) into the secrets of our heart, and cutteth asunder the soul. Here it is not the falling of carcasses nor, as there, the being deprived of a country, but of a heavenly kingdom; and being delivered to an everlasting hell, and to undying punishment and vengeance.
Theodoret Dialogues. The “Eranistes” or “Polymorphus” of the Blessed Theodoretus, Bishop of Cyrus, The Impassible
“Was what rose from the dead, man or God? Peter, the Apostle, who knows better than we, interprets and say, ‘and when they had fulfilled all that was written of Him they took Him down from the tree and laid Him in a sepulchre, but God raised Him from the dead.’ Now the dead body of Jesus which was taken down from the tree, which had been laid in a sepulchre, and entombed by Joseph of Arimathæa, is the very body which the Word raised, saying, ‘Destroy this temple, and in three days I will raise it up.’ It is He who quickens all the dead, and quickened the man Christ Jesus, born of Mary, whom He assumed. For if while on the cross He raised corpses of the saints that had previously undergone dissolution, much more can God the everliving Word raise the body, which He wore, as says Paul, ‘For the word of God is quick and powerful.’”
St Athanasius The Incarnation of the Word, If Power is the sign of life, what do we learn from the impotence of idols, for good or evil, and the constraining power of Christ and of the Sign of the Cross? Death and the demons are by this proved to have lost their sovereignty. Coincidence of the above argument from facts with that from the Personality of Christ
But they who disbelieve in the Resurrection afford a strong proof against themselves, if instead of all the spirits and the gods worshipped by them casting out Christ, Who, they say, is dead, Christ on the contrary proves them all to be dead. 2. For if it be true that one dead can exert no power, while the Saviour does daily so many works, drawing men to religion, persuading to virtue, teaching of immortality, leading on to a desire for heavenly things, revealing the knowledge of the Father, inspiring strength to meet death, shewing Himself to each one, and displacing the godlessness of idolatry, and the gods and spirits of the unbelievers can do none of these things, but rather shew themselves dead at the presence of Christ, their pomp being reduced to impotence and vanity; whereas by the sign of the Cross all magic is stopped, and all witchcraft brought to nought, and all the idols are …
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