John Trapp on Isaiah 7:18

Ver. 18. The Lord will hiſs for the flye, &c.] Out of Egypt and the confines. The people of which parts are fitly called flyes, ſay Expoſitors, for their numeroſity, ſwiftneſs, ſtench, impudency, harſh language, ob vocis abſonae ſtridorem. The countrey being hot, and lying low aboundeth with flyes and gnats, ſuch as proud Pharaoh was vexed with.

And for the bee that is in Aſſyria] That countrey is full of woods, and ſo of bees: to which alſo the Aſſyrians are fitly compared, as for their numerouſneſs, their military skill and comely marſhalling of their forces, their golden armour, their induſtry and conſtancy in battle; ſo for their force and fury eſpecially. Virgil ſpeaking of bees ſaith, Illis ira modum ſuperat, laefaeque venenum Inſpirant ſtimulis, & vitam in vulnere linquunt. See the Babylonical fierceneſs and cruelty graphically deſcribed, Jer. 51.34. It was ſo much the greater, becauſe ſent for and ſet on they were by Gods hiſs or whiſtle.