A sword is, etc; should rather be, Sword upon the Chaldea, it is an exclamation equivalent to "Let the Sword come upon the Chaldeans"—that sword which never "returns empty." The wise men are, partly the astronomers and astrologers at the various observatories in Babylonia, whose duty it was to send in monthly reports of the appearances in the sky, which were regarded as having an occult political significance (comp.
Isaiah 47:13). In the next verse they are called liars, or praters. In Isaiah 44:25 this word stands parallel to "diviners." Possibly "liars" may be a wider term than "wise men," and includes an inferior grade of pretenders to "wisdom."