They are vanity,.... They are the fruit of the vain imagination of men; to worship them shows the vanity of the human mind; and they are vain things to trust to:
and the work of errors; of erroneous men, and which lead men into errors; and are worthy to be laughed at, as the Targum paraphrases it.
In the time of their visitation they shall perish; or in the time that I shall visit upon them their sins, as the Targum; that is, when Babylon should be destroyed by the Medes and Persians, as Kimchi interprets it; when their idols were destroyed also; see Isaiah 46:1.