Matthew Poole and continuators on Isaiah 19:17

17 And the land of Judah shall be a terrour unto Egypt , every one that maketh mention thereof shall be afraid in himself; because of the counsel of the LORD of hosts, which he hath determined▪ against it .

Either, 1. because of Iudahs Calamities and Desolations: For Iudah was their Bulwark against the Assyrians and Babylonians; and when this Bulwark was removed, the Egyptians, their Neighbours and Confederates, had just cause to fear: Or, 2. because of their manifold both former and later Injuries against Iudah, for which they now apprehend that God is calling them to an account. Which Interpretation seems to be favoured by the following Words; for their fear of mentioning Iudahs Name seems to have proceeded partly from the sence of their Guilt and Miscarriages towards Iudah, and partly from their Apprehension and Experience of the irresistible Power and Justice of the God of Iudah, whom they had provoked, and who was now marching to plead his own and Iudahs Cause against them. Compare Ier. 23. 34, &c.

Because God is now about to execute his appointed Judgments.

Against Egypt.