John Gills Exposition of the Bible Commentary - Isaiah 30:25
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... read more
Matthew Henry's Complete Commentary - Isaiah 30:18-26
The closing words of the foregoing paragraph (You shall be left as a beacon upon a mountain) some understand as a promise that a remnant of them should be reserved as monuments of mercy; and here the prophet tells them what good times should succeed these calamities. Or the first words in this paragraph may be read by way of antithesis, Notwithstanding this, yet will the Lord wait that he may be gracious. The prophet, having shown that those who made Egypt their confidence would be ashamed of... read more