John Trapp on Isaiah 31:3

Ver. 3. Now the Egyptians are men and not God] Poets fain that in the Trojan war one god fought againſt another, Mulciber in Trojam, pro Troja ſtabat Apollo.

But theſe Jews could not imagine that the Egyptians in whom they confided, were fit matches for God, and able to deal with him. Who would ſet thoſe briars and thorns againſt me in battle? I would go through them, I would burn them together, chap. 27.4.

And their horſes fleſh and not ſpirit] God is Lord of hoſts: and as the Rabbins well obſerve, he hath his Cavallery and his Infantry, or his horſe and his foot: his upper forces and his lower, ready preſt. The charets of God are twenty thouſand, even thouſands of Angels, Pſal. 68.17. and what can the Egyptian horſe do againſt ſuch worthy warriors?