Adam Clarke on Job 41:19

Out of his mouth go burning lamps - Dr. Young, in his paraphrase, has a sensible note on this passage: - "This is nearer the truth than at first view may be imagined. The crocodile, according to naturalists, lying long under water, and being there forced to hold its breath, when it emerges, the breath long repressed is hot, and bursts out so violently, that it resembles fire and smoke. The horse does not repress his breath by any means so long, neither is he so fierce and animated; yet the most correct of poets ventures to use the same metaphor concerning him, volvit sub naribus ignem. By this I would caution against a false opinion of the boldness of Eastern metaphors, from passages ill understood."