The interpretation timeline
Isaiah 2:4 Douay-Rheims

And he shall judge the Gentiles, and rebuke many people: and they shall turn their swords into ploughshares, and their spears into sickles: nation shall not lift up sword against nation, neither shall they be exercised any more to war.

A.D. 220 – 1875 10 witnesses 11 excerpts

Patristic

before A.D. 750
220
A.D.
Tertullian Patristic
c. A.D. 150–220
“Long ago did Isaiah declare that "out of Zion should go forth the law, and the word of the Lord from Jerusalem," some other law, that is, and another word. In short, he says, "He shall judge among the nations and shall rebuke many people," meaning not those of the Jewish people only, but also of the nations which are judged by the new law of the gospel and the new word of the apostles, and are among themselves rebuked of their old error as soon as they have believed. And as the result of this, "They beat their swords into plowshares, and their spears (which are a kind of hunting instrument) into pruning hooks." That is to say, minds that once were fierce and cruel are changed by the gospel and the word of the apostles into good dispositions productive of good fruit.”
Source
“The gospel will be this "way" of the new law and the new word in Christ, no longer in Moses. "And he shall judge among the nations," even concerning their error. "And these shall rebuke a large nation," that of the Jews themselves and their proselytes. "And they shall beat their swords into plowshares"; in other words, they shall change into pursuits of moderation and peace the dispositions of injurious minds, hostile tongues and all kinds of evil and blasphemy.… You learn here that Christ is promised not as powerful in war but pursuing peace.”
Source
373
A.D.
c. A.D. 296–373
“Who is the one who has done this, or who is the one who has joined together in peace people who once hated one another, except for the beloved Son of the Father, the Savior of all, even Jesus Christ, who because of his own love suffered all things for our salvation? For from ages past the peace he would initiate was promised.”
Source
407
A.D.
John Chrysostom Patristic
A.D. 347–407
“Not only would the church be firm, steadfast and indestructible, but it would also gain great peace for the world. Governments and monarchies will be destroyed; there will be but one kingdom put together for all people, and, unlike in times past, its greater part will be at peace. For, in the past, all craftsmen and men in public life were trained in warfare and took their place among the ranks. After the coming of Christ, all that was done away with, and wars were confined to widely separated areas.”
Source

Scholastic

c. 1100 – 1500
1105
A.D.
Rashi Jewish
1040–1105
“into plowshares koltres in O.F. pruning hooks sarpes in O.F. [serpes in modern French], with which they prune the vineyards.”
1167
A.D.
Ibn Ezra Jewish
1089–1167
“And he shall judge. He, who is the judge, the Messiah, shall judge (comp. Numb. 26:59). לְאִתִּים Into plowshares. Comp. אֵתוֹ his plowshare (1 Sam. 13:20); the Dagesh of the ת compensates for the omitted silent letter י; the same purpose is served by the long vowel Zere under א in the word .אֵתוֹ למזמרות Pruning-hooks. Instruments for pruning the vineyards.”
Source
1256
A.D.
Thomas Aquinas Catholic
1225–1274
“And he shall judge. Here he promises peace to those converted; and concerning this he does three things. First he sets down the effective cause of peace; second, the sign of peace: and they shall beat their swords; third, the fruit of peace: nation shall not lift up. The effective cause of peace is the judgment of the king; and therefore he first says: he shall judge the nations, giving them laws, and shall rebuke the peoples, correcting sins. Below, 11: he shall judge the poor in justice, and shall rebuke in equity for the meek of the earth. The sign of peace is that instruments of war are turned into the cultivation of the field: hence he says: and they shall beat their swords into ploughshares. Psalm 45: he shall break the bow, and shatter the weapons. The fruit of peace is in the removal of enemies: hence he says: nation shall not lift up sword against nation. Below, 26: the old error has departed, you will keep peace, peace, because we have hoped in you. But against this, because afterward there were many wars. The Gloss answers, that they were not so great as before. Hence in the time of Antichrist, although there is to be the greatest persecution of the saints, yet they will have great peace among themselves, as was the case in the time of Diocletian. Or it should better be said that it refers to the peace made through Christ, which will be completed in the future. House of Jacob. Here is set down the calling of the Jews made after the conversion of the Gentiles: either from the person of the prophet, or from the person of the Gentiles, so that those who were at the head may be at the tail. Romans 11: blindness in part has happened until the fullness of the Gentiles should come in, and thus all Israel would be saved. Let us walk — together and in harmony, that there may be one fold. John 10: and there shall be one fold and one shepherd. In the light. John 12: walk while you have the light. For you have cast off. Here he shows their guilt: first in general; second in particular, at the place, and they have had soothsayers. Concerning the first he does two things. First he shows their distancing from God, when he says, for you have cast off: and as the Gloss continues: they are rightly to be called, because you have cast off. Jeremiah 22: why are he and his seed cast out, and cast forth into a land which they have not known. Second he gives the reason for the distancing, namely because they are filled with iniquity, as of old, in Egypt. Jeremiah 23: the land is filled with adulteries; for there is no cause of distancing from God except sin. Hence below, 59: your sins have divided between you and God. And soothsayers. Here he sets down their fault in particular; and especially concerning idolatry, which he charges against them in three ways. First as to their pagan manner of life; second as to the occasion of idolatry, at the place, the land is filled; third as to the observance of the cult, at the place, and the land is filled. He reproves their pagan manner of life in two respects. First as to the diviners and soothsayers whom they had: hence he says: soothsayers — that is, those who foretell future things from the voice and chattering of birds — they have had, like the Philistines, among whom this superstition especially flourished, against what is commanded in Deuteronomy 18: take care lest you wish to imitate the abominations of those nations. And immediately below: let there not be found among you one who consults soothsayers, and observes dreams and auguries. But it seems that augury is not a sin. For birds have a better estimative sense than fish, which are more watery; but sailors, from the movement of certain fish, take conjectures about a coming storm: therefore also through birds something can be foretold about future things. And it must be said that God has provided for each thing those means by which it can be preserved in being, according to the capacity of its nature: and therefore to man he gave reason, by which, through deliberation, he can discover for himself remedies against harmful things. And because in brute animals reason is lacking, he ordained that what is lacking from reason, nature should supply; and therefore to such creatures are given, naturally, weapons and coverings, which man acquires for himself through art. Likewise also there was created in them a certain natural power of estimation, impelling them to perform the works of their species. Hence they are acted upon rather than act, as the Damascene says. And since the lower nature is regulated by the higher nature and is moved by it, there remain in them impressions of the higher motions, stirring up a motion of this kind by which they are moved to provide for themselves in what is necessary. And in such matters, to take a conjecture from birds, or the movements of birds, or of other animals, is not a sin; but only concerning those things which have their cause from free will, which does not operate by the necessity of the stars. Second, as to unnatural passions, to which they were subject: hence he says: to strange children — that is, foreigners, or those alien from God — they clung, through shameful abuse. Romans 1: males working shameful acts with males. 2 Maccabees 4 speaks of this vice: for this was, moreover, a certain increase and advance of pagan and foreign manner of life, on account of the wicked and unpriestly Jason's nefarious and unheard-of crime. The land is filled. Here he sets down the occasion of idolatry, which is avarice or likeness. Ephesians 5: or avarice (...) which is the service of idols. First, therefore, he shows their avarice as to the multiplication of things pertaining to the necessity of sustenance, when he says, the land is filled: in which the abundance of things is noted; and there is no end: in which is noted the insatiability of the avaricious man, who will not be filled with money. Ecclesiasticus 5: the avaricious man will not be filled with money; and he who loves riches will receive no fruit from them. And Hosea 2: I gave them grain, wine and oil and silver, and I multiplied them, and gold; which they made into Baals. Second, as to things which pertain to the use of the one who carries, when he says, filled. Psalm 19: these in chariots, and these on horses; but we, etc. And the land is filled. Here he charges against them the cult of idolatry; and he aggravates this from three things. First from the multitude, when he says, and it is filled. Hosea 7: Ephraim has multiplied altars for sinning. Jeremiah 2: under every leafy tree and on every high hill you lay down, a harlot. Second from the vileness of the idols: because it is the work of their own hands, and still more what their fingers have made. Psalm 113: the idols of the nations are silver and gold, the works of the hands of men. Third from the dignity of man: and therefore he says: man, who was made to the image of God, has bowed himself down, subjecting himself to idols; the man, who seemed virtuous as to what he had acquired, has been humbled. Psalm 48: man, when he was in honor, did not understand; he was compared to senseless beasts, and became like them. Below, 44: he bows down before it, and worships, and says, deliver me.”

Post-Reformation

c. 1650 – 1900
1771
A.D.
John Gill Reformed
1697–1771
“And he shall judge among the nations,.... Or, "it shall judge"; either the mountain of the Lord's house, as Abarbinel thinks, that is, the church; for in the spiritual reign of Christ, in the latter day, the judgment shall be given to the saints of the most High, and they shall possess the kingdom; the power of civil government will be in their hands, and they shall judge the world; for kings will then be nursing fathers to them, and queens nursing mothers. Or the law and word of the Lord, the Gospel, which judges men now, and declares who are condemned, and who are not; and will judge them at the last day: or, "he shall judge", that is, the Messiah, as Aben Ezra, Kimchi, and Ben Melech interpret it; he shall be King over all the earth; the kingdoms of this world will become his, and his dominion will be from sea to sea, and from the rivers to the end of the earth: and shall rebuke many people; either the church shall rebuke by her ministers, whose work it is to reprove and rebuke for and to convince of both immorality and error; or, the word preached by them, which is the means of the conviction and conversion of sinners; or, Christ by his Spirit, whose office it is to reprove and convince the world of sin, righteousness, and judgment. It is a prophecy of numerous conversions among the Gentiles, in the latter day: and they shall beat their swords into ploughshares, and their spears into pruning hooks: instruments of war shall be no more used, but shall be turned into instruments of husbandry, much more advantageous and useful to mankind. Nation shall not lift up sword against nation, neither shall they learn war any more. This clearly proves that this prophecy belongs to future times; for this has never yet had its accomplishment in any sense; not in a literal sense; for though there was an universal peace all the world over, at the birth of Christ, in the times of Augustus Caesar, yet there afterwards were, as our Lord foretold there would be, wars, and rumours of wars, and nation should rise against nation, and kingdom against kingdom, and so it has been, more or less, ever since; nor in a spiritual sense, for though Christ has made peace by the blood of his cross, and came and preached it by his ministers, and wherever the Gospel of peace takes place, it makes men of peaceable dispositions, and reconciles them, as to God and Christ, and the way of salvation by him, so to one another; and it is peace saints are called to, and, when grace is in exercise, it rules in their hearts; and yet there have been sad contentions and quarrels among the people of God, and which yet still continue; but in the latter day glory, or spiritual reign of Christ, this prophecy will be fulfilled in every sense; for after the hour of temptation is over, that shall try all the earth, after the slaying of the witnesses and their rising, after the battle at Armageddon, when the beast and false prophet will be taken and cast alive into the lake of fire, there will be no more wars in the world, nor any persecution of the saints; and then will the peaceable kingdom of Christ appear, and all his subjects, and the members of his church, will live in the utmost unity and harmony together; they shall no more envy and vex one another; and of this peace there will be no end, Psa 72:7 these words are applied to the times of the Messiah, both by ancient (q) and modern (r) Jews. (q) T. Bab. Sabbat, fol. 63. 1. (r) R. Nachman. Disputat. cum fratre Paulo, p. 41. R. Isaac. Chizzuk Emuna, par. 1. cap. 1. p. 43, 44. Kimchi in Isa. lxv. 19.”
Source
1849
A.D.
1774–1849
“War. Ezechias enjoyed peace after the defeat of Sennacherib, as the whole world did at the birth of Christ. (Calmet) — Claudentur belli portæ. (Virgil, Æneid i.)”
1871
A.D.
1871
“judge--as a sovereign umpire, settling all controversies (compare Isa 11:4). LOWTH translates "work," "conviction." plowshares--in the East resembling a short sword (Isa 9:6-7; Zac 9:10).”
1875
A.D.
Keil & Delitzsch Lutheran
1861–1875
“"And He will judge between the nations, and deliver justice to many peoples; and they forge their swords into coulters, and their spears into pruning-hooks: nation lifts not up the sword against nation, neither do they exercise themselves in war any more." Since the nations betake themselves in this manner as pupils to the God of revelation and the word of His revelation, He becomes the supreme judge and umpire among them. If any dispute arise, it is no longer settled by the compulsory force of war, but by the word of God, to which all bow with willing submission. With such power as this in the peace-sustaining word of God (Zac 9:10), there is no more need for weapons of iron: they are turned into the instruments of peaceful employment, into ittim (probably a synonym for ethim in Sa1 13:21), plough-knives or coulters, which cut the furrows for the ploughshare to turn up and mazmeroth, bills or pruning-hooks, with which vines are pruned to increase their fruit-bearing power. There is also no more need for military practice, for there is no use in exercising one's self in what cannot be applied. It is useless, and men dislike it. There is peace, not an armed peace, but a full, true, God-given and blessed peace. What even a Kant regarded as possible is now realized, and that not by the so-called Christian powers, but by the power of God, who favours the object for which an Elihu Burritt enthusiastically longs, rather than the politics of the Christian powers. It is in war that the power of the beast culminates in the history of the world. This beast will then be destroyed. The true humanity which sin has choked up will gain the mastery, and the world's history will keep Sabbath. And may we not indulge the hope, on the ground of such prophetic words as these, that the history of the world will not terminate without having kept a Sabbath? Shall we correct Isaiah, according to Quenstedt, lest we should become chiliasts? "The humanitarian ideas of Christendom," says a thoughtful Jewish scholar, "have their roots in the Pentateuch, and more especially in Deuteronomy. But in the prophets, particularly in Isaiah, they reach a height which will probably not be attained and fully realized by the modern world for centuries to come." Yet they will be realized. What the prophetic words appropriated by Isaiah here affirm, is a moral postulate, the goal of sacred history, the predicted counsel of God.”
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.