A khamsin wind which drives the temperature up by 25 degrees very quickly and because it is coming off of the desert sand it fills the air with a dust that makes it hard to breathe
The Khamsin wind–it blows from the east–is hot and causes discomfort from sand and haze.
““Would a wise person answer with empty notions
or fill their belly with the hot east wind?” – This must be a khamsin (fifty). This is an East Wind (from the east…dust and heat).
Job could be referring to the khamsin wind, described as the east wind from the desert. These are nasty winds that gust up to 60mph, lift temperatures by 25F, reduce humidity to 2 percent and fill the air with dust and haze. . They irritate everyone and have no redeeming features, unlike the Mediterranean Sea breeze which is ‘natural air conditioning’ during the summer months and aids with threshing.
The author is talking about the khasmin winds that are irritating and disagreeable. They are good for nothing. a wise man should ignore talk that resembles it. its not worthit.
Job 15:2: Should a wise man answer with empty knowledge and fill himself with the east wind?
The wind is likely to be the east wind blowing from the desert that fills the air with fine dust and haze that is irritable to everyone even up to today. The east wind is used here to denote a manner of discourse that had in it nothing profitable.