They are vanity, and the work of errors: in the time of their visitation they shall perish.
They are devoid of worth, usefulness, or truth, a work of delusion and mockery; in their time of trial and punishment they shall [helplessly] perish.
They are vanity, a work of delusion: in the time of their visitation they shall perish.
They are a delusion, a charade; at the appointed time they will vanish!
These things are empty, and they are a work deserving of ridicule. In the time of their visitation, they will perish.
They are vain things and a ridiculous work: in the time of their visitation they shall perish.