Joel 3:9 - Joseph Benson’s Commentary on the Old and New Testaments

Proclaim ye this among the Gentiles “God having foretold these judgments against Tyre and Sidon, the Philistines, and the neighbouring nations, who had used the Jews with injustice and cruelty, proceeds here to confirm his people in the belief of the certainty of their destruction; which he tells them should be as sure as though they themselves had gathered them together by proclamation for it: for so are these words, Proclaim ye, &c., to be understood. Not as commanding what they were actually to do, but in order to excite their attention, and to let them know that God was as certainly preparing to bring this vengeance on their enemies, as though he had actually sent messengers from the Jews to proclaim it among them:” see Chandler. Prepare war, wake up the mighty men Rouse and bring forward into the field your strong and valiant men. In these words the prophet, in an ironical manner, encourages them to make their utmost effort to oppose the designs of Providence; but signifies that it should be all in vain. For, should they strengthen themselves by all the means in their power, yet they should be overcome and punished. Beat your plough-shares into swords, &c. That is, make all the provision and preparation for war, or for your own defence, that you possibly can. For a people to beat their very plough-shares into swords, &c., signifies a general arming of themselves, much beyond what had been usual.