38. drought--Altering the pointing, this verse will begin as the three previous verses, "A sword." However, all the pointed manuscripts read, "A drought," as English Version. Cyrus turned off the waters of the Euphrates into a new channel and so marched through the dried-up bed into the city (Jer 51:32). Babylonia once was famed for its corn, which often yielded from one to two hundredfold [HERODOTUS]. This was due to its network of water-courses from the Euphrates for irrigation, traces of which [LAYARD] are seen still on all sides, but dry and barren (Isa 44:27).
      their idols--literally, "terrors." They are mad after idols that are more calculated to frighten than to attract (Jer 51:44, 47, 52; Da 3:1). Mere bugbears with which to frighten children.

JFB.