Sforno on Exodus 10:5/ספורנו על שמות י׳:ה׳

1ואכל את כל העץ, it will destroy it. The word אכל here is used in the same sense as in Psalms 79,7 כי אכל את יעקב, “for he has consumed Yaakov,” i.e. destroyed him. Deuteronomy 31,17 והיה לאכול also means “that it may be destroyed.”