Matthew Poole and continuators on Isaiah 19:14

14 The LORD hath mingled a perverse spirit in the midst thereof; and they have caused Egypt to err in every work thereof , as a drunken man staggereth in his vomit .

Or, hath poured out or given them to drink, as appears from their Drunkenness, expressed in the end of the Verse. Which also suits with the Scripture-phrase, whereby a cup signifies God's Judgments, as Isa. 51. 17, 21, 22. Ier. 25. 15. &c.

Heb. a spirit of perversities or crookednesses; or, as the Seventy and Chaldee render it, of errour or delusion; a Disposition of Mind very apt to mistake, and to mislead them into foolish and crooked Counsels and Courses. Which God could easily effect, partly by laying Occasions of stumbling in their way, and partly by withdrawing or darkning that Wisdom which he had infused, by which alone Men can discern their Way.

In all their Designs and Undertakings.

When he is so excessively drunk, that he reels to and fro, and vomits up his Drink.

Marginal references: Heb. a spirit of perversities