Isaiah 2:4

“And he shall judge among the nations, &c.] 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…”

“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).”

“And he shall judge - Or he shall exercise the office of a judge, or umpire. This “literally” refers to the God of Jacob Isaiah 2:3, though it is clear that the meaning is, that he will do it by the Messiah, or under his reign. One office of a judge is to decide controversies; to put an end to litigations, and thus to promote peace. The connection shows that this is the meaning here. Nations that are contending shall be brought to peace by the influence of the reign of the Messiah, and shall beat their swords into plowshares. In other words, the influence of the reign of the Messiah shall put a period to wars, and reduce contending nations to peace. And shall rebuke - Shall “reprove” them for…”

“He - Christ shall set up his authority among all nations, not only giving laws to them, but doing what no other can do, convincing their consciences, changing their hearts, and ordering their lives. Rebuke - By his word and Spirit, convincing the world of sin; and by his judgments upon his implacable enemies, which obstruct the propagation of the gospel. Isaiah 2:5”

“2:4 The Kingdom of God is evident when conflict and violence end, and it is characterized by peace (Rom 14:17). People will cooperate willingly or they will be forced to end their hostilities (Ps 46:9). The nations will submit to divine arbitration rather than go to war (see Isa 1:18-20). • The words mediate and settle refer to God’s acts here, but later verses show the Messiah as the executor of justice (11:3-4). When this takes place, war will cease, and the nations will change their instruments of war into agricultural tools. • swords into plowshares: Cp. Joel 3:10, where the nations are exhorted to hammer their plowshares into swords.”

“And he: Isa 11:3, Isa 11:4; Sa1 2:10; Psa 82:8, Psa 96:13, Psa 110:6; Joh 16:8-11; Act 17:31; Rev 19:11 and they: Isa 9:7, Isa 11:6-9; Psa 46:9; Hos 2:18; Joe 3:10; Mic 4:3; Zac 9:10 pruninghooks: or, scythes neither: Isa 60:17, Isa 60:18; Psa 72:3-7 Isaiah 2:5”

“"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…”