A drought is upon her waters - May not this refer to the draining of the channel of the Euphrates, by which the army of Cyrus entered the city. See on Jeremiah 50:24; (note). The original is, however, חרב chereb, a sword, as in the preceding verses, which signifies war, or any calamity by which the thing on which it falls is ruined.
A drought - Rather, “a sword,” i. e., military skill and forethought.
They are mad upon their idols - Omit their. The word for idols, literally terrors Psalm 88:16 is used in this one place only of objects of worship. Probably it refers to those montrous forms invented as representations of their deities.