6. candle—the lamp which in the East is usually fastened to the ceiling. Oil abounds in those regions, and the lamp was kept burning all night, as now in Egypt, where the poorest would rather dispense with food than the night lamp (Ps 18:28). To put out the lamp was an image of utter desolation.

     17. Job in this whole passage down to Job 21:21 quotes the assertion of the friends, as to the short continuance of the sinner's prosperity, not his own sentiments. In Job 21:22 he proceeds to refute them. "How oft is the candle" (lamp), &c., quoting Bildad's sentiment (Job 18:5, 6), in order to question its truth (compare Mt 25:8).