(25) There shall be upon every high mountain . . .--The picture of a golden age is continued. The mountains and hills, often so dry and barren, should flow down with rivers of waters, and irrigate the valleys. And this should coincide with the day of a "great slaughter," perhaps of the enemies of Israel, perhaps also of the people themselves (judgment coming before the blessing), and of the fall of the "towers" in which they had put their trust. (Comp. Isaiah 40:4.) As before, man's extremity was to be God's opportunity. Possibly, however, the "towers" are those of the besiegers of the city.

Verse 25. - Rivers and streams of water; rather, rivulets, courses of water. Channels, along which water was conveyed for the purpose of irrigation, are intended (comp. Ezekiel 47:1-12; Joel 3:18). No doubt there is a secondary allegorical meaning running through the whole description of Judah's prosperity (vers. 23-26). In this allegorical intention the waters stand for the streams of God's grace. In the day of the great slaughter. Equivalent to "the day of vengeance" (Isaiah 34:8) the day when God shall tread down his enemies. The prophet passes from the immediate effect of Judah's repentance to a broader view of what shall happen when God's kingdom is established upon the earth. When the towers fall; i.e. when there shall be a general "pulling down of strong holds," and a "casting down of every high thing that exalts itself against God" (2 Corinthians 10:4, 5).

30:19-26 God's people will soon arrive at the Zion above, and then they will weep no more for ever. Even now they would have more comfort, as well as holiness, if they were more constant in prayer. A famine of bread is not so great a judgment as a famine of the word of God. There are right-hand and left-hand errors; the tempter is busy courting us into by-paths. It is happy if, by the counsels of a faithful minister or friend, or the checks of conscience, and the strivings of God the Spirit, we are set right when doubting, and prevented from going wrong. They shall be cured of their idolatry. To all true penitents sin becomes very hateful. This is shown daily in the conversion of souls, by the power of Divine grace, to the fear and love of God. Abundant means of grace, with the influences of the Holy Spirit, would be extended to places destitute of them. The effect of this should be comfort and joy to the people of God. Light, that is, knowledge, shall increase. This is the light which the gospel brought into the world, and which proclaims healing to the broken-hearted.And there shall be upon every high mountain, and upon every high hill,.... Which were round about Jerusalem, and in other parts of Judea:

rivers and streams of water; such abundance of rain, that it should flow in streams like rivers, from the higher to the lower lands, and water them. This may in a spiritual sense be understood of the great plenty of the ministry of the Gospel, in all the kingdoms of the world, great and small, signified by mountains and hills; and which may also intimate the open and public ministrations of it in them, Zechariah 14:8 or of the blessings of grace, and the graces of the Spirit, communicated everywhere; see Isaiah 41:18, John 7:38. This is applied to the times of the Messiah by the Jews (g) themselves, and respects the latter part of those times:

in the day of the great slaughter; not of Sennacherib's army by the angel, as many Jewish and Christian interpreters understand it; nor of the Babylonians, at the taking of Babylon by Cyrus; but of the antichristian kings, and their armies, Revelation 19:17. So the Targum paraphrases it,

"for the ruin of kings and their armies, in the day of the great slaughter;''

and a great slaughter it will be indeed:

when the towers fall; not the batteries and fortifications raised in the Assyrian camp, at the siege of Jerusalem, which fell when they were destroyed by the angel; or the great men and princes in that army, which then fell; though towers sometimes signify great persons, such as princes; see Isaiah 2:15 and so the Targum interprets it here; and may be true of the antichristian princes; for of the fall of the great city of Rome, and of other cities of the nations, with the towers thereof, is this to be understood, even of mystical, and not of literal Babylon; see Revelation 11:13.

(g) Bemidbar Rabba, fol. 212. 3.