2. idols--literally, "the teraphim," the household gods, consulted in divination (see on Ho 3:4). Derived by GESENIUS from an Arabic root, "comfort," indicating them as the givers of comfort. Or an Ethiopian root, "relics." Herein Zechariah shows that the Jews by their own idolatry had stayed the grace of God heretofore, which otherwise would have given them all those blessings, temporal and spiritual, which they are now (Zec 10:1) urged to "ask" for.
      diviners--who gave responses to consulters of the teraphim: opposed to Jehovah and His true prophets.
      seen a lie--pretending to see what they saw not in giving responses.
      comfort in vain--literally, "give vapor for comfort"; that is, give comforting promises to consulters which are sure to come to naught (Job 13:4; 16:2; 21:34).
      therefore they went their way--that is, Israel and Judah were led away captive.
      as a flock . . . no shepherd--As sheep wander and are a prey to every injury when without a shepherd, so the Jews had been while they were without Jehovah, the true shepherd; for the false prophets whom they trusted were no shepherds (Eze 34:5). So now they are scattered, while they know not Messiah their shepherd; typified in the state of the disciples, when they had forsaken Jesus and fled (Mt 26:56; compare Zec 13:7).

JFB.