The land was darkened; either by their flying in vast numbers, and so darkening the air, as they have ofttimes done; or by covering the green and lightsome herbs and productions of the earth with their dark and direful bodies. They did eat every herb of the land. How could this be, when the hail had smitten every herb, and broken every tree ? Exodus 9:25. Answ.
1. There seems to have been some distance of time between these two plagues, in which space new productions might be sprouting forth, both out of the ground, and from the trees.
2. The words all and every are commonly understood of the greatest part.