Matthew Poole and continuators on Job 4:9

9. By the blast of God they perish, and by the Breath of his Nostrils are they consumed.

To wit, Of his Nostrils, as it here follows; i. e. by his Anger, which in Men shews itself, in the Nostrils, by hot and frequent Breathings there, and therefore by an Anthropopathy is ascribed to God: by a secret and oft undiscerned, but mighty and powerful, Judgment of God, by which they are blasted and blown away as Chaff by the Wind, as the Phrase is, Psal. 1.

Marginal references: That is, by his Anger, as Isa. 30. 33. Exod. 15. 8. Chap. 1. 19. and 15. 30. Isa. 11. 4.