Matthew Poole and continuators on Exodus 9:15

15 For now I will stretch out mine hand, that I may smite thee and thy people with pestilence , and thou shalt be cut off from the earth.

(i. e.) Not properly so called, but largely, as the word is used, Hos. 13. 14. with an utter and irrecoverable destruction. This relates partly to the killing of the first-born, which plague did more immediately and nearly concern both him and his people, and principally to their destruction in the Red Sea.