Joe 2:7-9
In Joe 2:7-10 the comparison of the army of locusts to a well-equipped army is carried out still further; and, in the first place, by a description of the irresistible force of its advance. Joe 2:7. “They run like heroes, like warriors they climb the wall; every one goes on its way, and they do not change their paths. Joe 2:8. And they do not press one another, they go every one in his path; and they fall headlong through weapons, and do not cut themselves in pieces. Joe 2:9. They run about in the city, they run upon the wall, they climb into the houses, they come through the windows like a thief.” This description applies for the most part word for word to the advance of the locusts, as Jerome (in loc.) and Theodoret (on Joe 2:8) attest from their own observation.
They run like heroes - namely, to the assault: רוּץ referring to an attack, as in Job 15:26 and Psa 18:30, “as their nimbleness has already been noticed in Joe 2:4” (Hitzig). Their climbing the walls also points to an assault. Their irresistible march to the object of their attack is the next point described. No one comes in another’s way; they do not twist (עבט) their path, i.e., do not diverge either to the right hand or to the left, so as to hinder one another. Even the force of arms cannot stop their advance. שׁלח is not a missile, telum, missile (Ges. and others), but a weapon extended or held in front (Hitzig); and the word is not only applied to a sword (2Ch 23:10; Neh 4:11), but to weapons of defence (2Ch 32:5). בּצע, not “to wound themselves” (= פּצע), but “to cut in pieces,” used here intransitively, to cut themselves in pieces. This does no doubt transcend the nature even of the locust; but it may be explained on the ground that they are represented as an invincible army of God.
On the other hand, the words of Joe 2:9 apply, so far as the first half is concerned, both to the locusts and to an army (cf. Isa 33:4; Nah 2:5); whereas the second half applies only to the former, of which Theodoret relates in the passage quoted just now, that he has frequently seen this occur (compare also Exo 10:6).