SHould a wise man utter vain knowledge] Heb. knowledge of winde. Art not thou ashamed, who wouldst be counted a wise man, to speak empty words? fill his belly] Chap. 6. 26. with the east-winde?] Thy words are not onely empty, like winde, but blasting and blustering, like the east-winde, Hosea 12:1.