1 In that day, this song will be sung in the land of Judah: "We have a strong city. God appoints salvation for walls and bulwarks.
*Minor differences ignored. Grouped by changes, with first version listed as example.
In that day shall a song be sung. Here the Prophet begins again to shew that, after the return of the people from captivity, they will be defended by God's power and guardianship, and that under his protection Jerusalem will be as safe as if she had been surrounded by bulwarks, ramparts, a ditch, and a double wall, so that no enemy could find entrance. It is proper to observe the time when "this song was sung." The Prophet had foretold the calamity that would befall the Church, which was not yet so near at hand, but happened a short time after his death. When the people were led into captivity, they would undoubtedly have despaired, if they had not been encouraged by such promises. That the Jews might cherish a hope that they would be delivered, and might behold life in the midst of death, the Prophet composed for them this song, even before the calamity occurred, that they might be better prepared for enduring it, and might hope for better things. I do not think that it was composed solely that, when they had been delivered, they might give thanks to God, but that even during their captivity, though they were like dead men, (Ezekiel 37:1,) they might strengthen their hearts with this confidence, and might also train up their children in this expectation, and hand down these promises, as it were, to posterity. We have formerly [1] seen the reason why these and other promises were put by Isaiah into the form of verse. It was, that, having been frequently sung, they might make a deeper impression on their memory. Though they mourned in Babylon, and were almost overwhelmed with sorrow, (hence these sounds, (Psalm 137:4,) "How can we sing the Lord's song in a foreign land?") yet they must have hoped that at a future period, when they should have returned to Judea, they would give thanks to the Lord and sing his praises; and therefore the Prophet shews to them at a distance the day of deliverance, that they may take courage from the expectation of it. We have a city of strength. By these words a full restoration of Jerusalem and of the people is promised, because God will not only deliver the captives and gather those that are scattered, but will also preserve them safe, after having brought them back to their country. But not long afterwards believers saw that Jerusalem was destroyed, (2 Kings 25:9,) and the Temple thrown down, (2 Chronicles 36:19,) and after their return nothing could meet their eye but hideous ruins; and all this Isaiah had previously foretold. It was therefore necessary that they should behold from the lofty watch-tower of faith this restoration of Jerusalem. He hath made salvation to be walls and a bulwark. He now defines what will be "the strength of the city;" for the "salvation" of God will supply the place of a "wall," towers, ditches, and mounds. As if he had said, "Let other cities rely on their fortifications, God alone will be to us instead of all bulwarks." Some allege that the words may be read, "He hath set a wall and bulwark for salvation;" and I do not set aside that rendering. But as a more valuable doctrine is contained in the Prophet's words, when nothing is supplied, it serves no good purpose to go far for a forced interpretation; especially since the true and natural interpretation readily presents itself to the mind, which is, that God's protection is more valuable than all ditches and walls. In like manner, it is also said in the psalm, "Thy mercy is better than life," (Psalm 63:3;) for as David there boasts of enjoying, under God's shadow, greater safety and freedom from care than if he had been fortified by every kind of earthly defense, so Isaiah here says, that there will be good reason for laying aside fear, when God shall have undertaken to guard his people. Now, since this promise extends to the whole course of redemption, we ought to believe that at the present day God is still the guardian of his Church, and therefore, that his power is of more avail than if it had been defended by every kind of military force. Accordingly, if we wish to dwell in safety, we must remain in the Church. Though we have no outward defences, yet let us learn to be satisfied with the Lord's protection, and with his sure salvation, which is better than all bulwarks.
1 - See [22]vol. 1 p. 162.
In that day shall this song be sung - By the people of God, on their restoration to their own land.
We have a strong city - Jerusalem. This does not mean that it was then strongly fortified, but that God would guard it, and that thus it would be strong. Jerusalem was easily capable of being strongly fortified Psalm 25:2; but the idea here is, that Yahweh would be a protector, and that this would constitute its strength.
Salvation will God appoint for walls - That is, he will himself be the defender of his people in the place of walls and bulwarks. A similar expression occurs in Isaiah 60:18 (see also Jeremiah 3:23, and Zac 2:5).
Bulwarks - This word means properly bastions, or ramparts. The original means properly a pomoerium, or antemural defense; a space without the wall of a city raised up like a small wall. The Syriac renders it, Bar shuro, - 'Son of a wall,' meaning a small wall. It was usually a breastwork, or heap of earth thrown up around the city, that constituted an additional defense, so that if they were driven from that they could retreat within the walls.
We have a strong city - In opposition to the city of the enemy, which God hath destroyed, Isaiah 25:1-12 (note). See the note there.
Salvation - for walls and bulwarks - חומת וחל chomsoth vachel, walls and redoubts, or the walls and the ditch. חל chel properly signifies the ditch or trench without the wall; see Kimchi. The same rabbin says, This song refers to the time of salvation, i.e., the days of the Messiah.
In that day shall (a) this song be sung in the land of Judah; We have a strong city; (b) salvation will [God] appoint [for] walls and bulwarks.
(a) This song was made to comfort the faithful when their captivity would come, assuring them also of their deliverance, for which they should sing this song.
(b) God's protection and defence will be sufficient for us.
In that day shall this song be sung in the land of Judah,.... When great things shall be done: for the church and people of God; and when antichrist and all their enemies are destroyed, as mentioned in the preceding chapter Isaiah 25:1; then this song shall be sung expressed in this throughout; which the Targum calls a "new" song, an excellent one, as the matter of it shows; and which will be sung in the land of Judah, the land of praise in the congregation of the saints, the professors and confessors of the name of Jesus: in Mount Zion, the church of God below, Psalm 149:1,
we have a strong city; not an earthly one, as Jerusalem; so the Jewish writers, Jarchi, Aben Ezra, and Kimchi, interpret it; nor the heavenly city, which God has prepared and built, and saints are looking for, and are citizens of: but rather the holy city, the New Jerusalem, described in Revelation 21:2 or however, the church of Christ, as in the latter day; which will be a "strong" one, being of the Lord's founding, establishing, keeping, and defending; and whose strength will greatly lie in the presence of God, and his protection of it; in the number of its citizens, which will be many, when Jews and Gentiles are converted; and in their union one with another, and the steadfastness of their faith in Christ; when a "small one", as the church is now, shall become a "strong nation", Isaiah 60:22,
salvation will God appoint for walls and bulwarks; instead of walls, ditches, parapets, counterscarps, and such like fortifications; what they are to cities, that is salvation to the church and people of God; it is their safety and security: as God the Father is concerned in it, it flows from his love, which is unchangeable; it is by an appointment of his, which is unalterable; is secured by election grace, which stands not upon the works of men, but the will of God; and by the covenant of grace, ordered in all things, and sure; and by his power the saints are kept unto it: as Christ is concerned in it, it is as walls and bulwarks; he is the author of it, has completely finished it, and has overcome and destroyed all enemies; his righteousness is a security from all charges and condemnation; his satisfaction a bulwark against the damning power of sin, the curses of the law, and the wrath of God; his mediation and intercession are a protection of saints; and his almighty power a guard about them. As the Spirit is concerned in it, who is the applier of it, and evidences interest in it; it is a bulwark against sin, against Satan's temptations, against a spirit of bondage to fear, against error, and a final and total falling away; particularly the church's "walls" will be "salvation", and her "gates" praise, of which in the next verse Isaiah 26:2, in the latter day glory; to which this song refers; see Isaiah 60:18.
"That day," seems to mean when the New Testament Babylon shall be levelled with the ground. The unchangeable promise and covenant of the Lord are the walls of the church of God. The gates of this city shall be open. Let sinners then be encouraged to join to the Lord. Thou wilt keep him in peace; in perfect peace, inward peace, outward peace, peace with God, peace of conscience, peace at all times, in all events. Trust in the Lord for that peace, that portion, which will be for ever. Whatever we trust to the world for, it will last only for a moment; but those who trust in God shall not only find in him, but shall receive from him, strength that will carry them to that blessedness which is for ever. Let us then acknowledge him in all our ways, and rely on him in all trials.
CONNECTED WITH THE TWENTY-FOURTH AND TWENTY-FIFTH CHAPTERS. SONG OF PRAISE OF ISRAEL AFTER BEING RESTORED TO THEIR OWN LAND. (Isaiah. 26:1-21)
strong city--Jerusalem, strong in Jehovah's protection: type of the new Jerusalem (Psalm 48:1-3), contrasted with the overthrow of the ungodly foe (Isaiah 26:4-7, Isaiah 26:12-14; Revelation 22:2, Revelation 22:10-12, &c.).
salvation . . . walls-- (Isaiah 60:18; Jeremiah 3:23; Zac 2:5). MAURER translates, "Jehovah makes His help serve as walls" (Isaiah 33:20-21, &c.).
bulwarks--the trench with the antemural earthworks exterior to the wall.
Thus the second hymnic echo has its confirmation in a prophecy against Moab, on the basis of which a third hymnic echo now arises. Whilst on the other side, in the land of Moab, the people are trodden down, and its lofty castles demolished, the people in the land of Judah can boast of an impregnable city. "In that day will this song be sung in the land of Judah: A city of defence is ours; salvation He sets for walls and bulwark." According to the punctuation, this ought to be rendered, "A city is a shelter for us;" but עז עיר seem rather to be connected, according to Proverbs 17:19, "a city of strong, i.e., of impregnable offence and defence." The subject of ישׁית is Jehovah. The figure indicates what He is constantly doing, and ever doing afresh; for the walls and bulwarks of Jerusalem (chēl, as in Lamentations 2:8, the small outside wall which encloses all the fortifications) are not dead stone, but yeshuâh, ever living and never exhausted salvation (Isaiah 60:18). In just the same sense Jehovah is called elsewhere the wall of Jerusalem, and even a wall of fire in Zac 2:9 - parallels which show that yeshuâh is intended to be taken as the accusative of the object, and not as the accusative of the predicate, according to Isaiah 5:6; Psalm 21:7; Psalm 84:7; Jeremiah 22:6 (Luzzatto).
In that day - When God shall do such glorious works, as are described in the foregoing chapter. Sung - In the church of God. A city - Jerusalem, or the church, which is often compared to a city. For walls - God's immediate and saving protection shall be to his church instead of walls.
*More commentary available at chapter level.