They did eat every green herb of the land There seems to have been some distance of time between the last plague and this, during which, in that warm and fertile country, new productions had sprouted forth, both out of the ground and from the trees. There remained not any green thing The earth God has given to the children of men; yet when he pleaseth he can disturb their possession of it, even by locusts and caterpillars. Herb grows for the service of man, yet, when God pleaseth, these contemptible insects shall not only be fellow-commoners with him, but shall eat the bread out of his mouth.
Related Commentaries of Exodus 10:15
Exodus 10:15
15 For they covered the face of the whole earth, so that the land was darkened; and they did eat every herb of the land, and all the fruit of the trees which the hail had left: and there remained not any green thing in the trees, or in the herbs of the field, through all the land of Egypt.