50:38 A {a} drought [is] upon her waters; and they shall be dried up: for it [is] the land of graven images, and they are mad over [their] idols.
(a) For Cyrus cut the river Euphrates and divided the course of it into many streams, so that it might be passed over as though there had been no water: which he did by the counsel of two of Belshazzar's captains, who conspired against their king, because he had gelded one of them in spite and slain the son of the other.
50:38 Dried - This phrase has a plain reference to Cyrus's stratagem used in the surprize of Babylon; one part of it was fortified by the great river Euphrates, which Cyrus diverted by cutting several channels, 'till he had drained it so low, that it became passable for his army; others think that a want of rain is here threatened.
50:33-46 It is Israel's comfort in distress, that, though they are weak, their Redeemer is strong. This may be applied to believers, who complain of the dominion of sin and corruption, and of their own weakness and manifold infirmities. Their Redeemer is able to keep what they commit to him; and sin shall not have dominion over them. He will give them that rest which remains for the people of God. Also here is Babylon's sin, and their punishment. The sins are, idolatry and persecution. He that will not save his people in their sins, never will countenance the wickedness of his open enemies. The judgments of God for these sins will lay them waste. In the judgments denounced against prosperous Babylon, and the mercies promised to afflicted Israel, we learn to choose to suffer affliction with the people of God, rather than to enjoy the pleasures of sin for a season.