Job 18:6

And his candle -Margin, lamp. The reference is to a lamp that was suspended from the ceiling. The Arabians are fond of this image. Thus, they say, “Bad fortune has extinguished my lamp.” Of a man whose hopes are remarkably blasted, they say, “He is like a lamp which is immediately extinguished if you let it sink in the oil.” See Schultens. The putting out of a lamp is to the Orientals an image of utter desolation. It is the universal custom to have a light burning in their houses at night. “The houses of Egypt, in modern times, are never without lights; they burn lamps all the night long, and in every occupied apartment.