23. her forest—(Isa 10:34).
though it cannot be searched—They cut down her forest, dense and unsearchable (Job 5:9; 9:10; 36:26) as it may seem: referring to the thickly set cities of Egypt, which were at that time a thousand and twenty. The Hebrew particle is properly, "for," "because."
because—the reason why the Chaldeans shall be able to cut down so dense a forest of cities as Egypt: they themselves are countless in numbers.
grasshoppers—locusts (Jud 6:5).