Matthew Henry on Nahum 3:8–end
Nineveh has been told that God is against her, and then none can be for her, to stand her in any stead; yet she sets God himself at defiance, and his power and justice, and says, I shall have peace. Threatened folks live long; therefore here the prophet largely shows how vain her confidences would prove and insufficient to ward off the judgment of God. To convince them of this,
I. He shows them that other places, which had been as strong and as secure as they, could not keep their ground against the judgments of God. Nineveh shall fall unpitied and uncomforted (for miserable comforters will those prove who speak peace to those on whom God will fasten trouble), and she shall not be able to he…
Read the whole note in the consoleJamieson-Fausset-Brown on Nahum 3:15
There--in the very scene of thy great preparations for defense; and where thou now art so secure.
fire--even as at the former destruction; Sardanapalus (Pul?) perished with all his household in the conflagration of his palace, having in despair set it on fire, the traces of which are still remaining.
cankerworm--"the licking locust" [HENDERSON].
make thyself many as the locusts--"the swarming locusts" [HENDERSON]; that is, however "many" be thy forces, like those of "the swarming locusts," or the "licking locusts," yet the foe shall consume thee as the "licking locust" licks up all before it.
Adam Clarke on Nahum 3:15
Make thyself many as the cankerworm - On the locusts, and their operations in their various states, see the notes on Joel 2 (note). The multitudes, successive swarms, and devastation occasioned by locusts, is one of the most expressive similes that could be used to point out the successive armies and all-destroying influences of the enemies of Nineveh. The account of these destroyers from Dr. Shaw, inserted Joel 2, will fully illustrate the verses where allusion is made to locusts.
John Gill on Nahum 3:15
There shall the fire devour thee,.... In the strong holds, made ever so firm and secure; either the fire of divine wrath; or the fire of the enemy they should put into them; or the enemy himself, as Kimchi; and so the Targum,
"thither shall come upon thee people who are as strong as fire:''
the sword shall cut thee off; it shall eat thee up as the cankerworm: that is, the sword of the Medes and Chaldeans shall utterly destroy thee, as the cankerworm is destroyed by rain or fire; or rather, as that creature destroys all herbs, plants, and trees it falls upon, and makes clear riddance of them, so should it be with Nineveh:
make thyself many as the cankerworm; make thyself many as the locust…