Adam Clarke's Commentary on the Bible - Psalms 18:8
There went up a smoke out of his nostrils - Or, 'There ascended into his nostrils a smoke,' as the words, literally rendered, signify. The ancients placed the seat of anger in the nose, or nostrils; because when the passions are warm and violent, it discovers itself by the heated vehement breath which proceeds from them. Hence the physiognomists considered open wide nostrils as a sign of an angry, fiery disposition. "This description of a smoke arising into and a fire breaking forth from... read more
Adam Clarke's Commentary on the Bible - Psalms 18:7
Then the earth shook and trembled - " In this and the following verses David describes, by the sublimest expressions and grandest terms, the majesty of God, and the awful manner in which he came to his assistance. The representation of the storm in these verses must be allowed by all skillful and impartial judges to be truly sublime and noble, and in the genuine spirit of poetry. The majesty of God, and the manner in which he is represented as coming to the aid of his favourite king,... read more