Job 18:5-6

5. That (Job 18:4) cannot be. The decree of God is unalterable, the light (prosperity) of the wicked shall at length be put out.

his fire—alluding to Arabian hospitality, which prided itself on welcoming the stranger to the fire in the tent, and even lit fires to direct him to it. The ungodly shall be deprived of the means to show hospitality. His dwelling shall be dark and desolate!

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.