By saying that they would come to the prey, he means that they would have no trouble or labor, for they would be victorious before they had any contest, or had any war with their enemies. The meaning then is, that the Chaldeans would not come to spend much time in warfare, as when there is a strong power to resist; but that they would only come for the booty, for the Jews would be frightened, and instantly submit themselves. And by these words the Prophet intimates, that there would be neither strength nor courage in a people so refractory: for God thus debilitates the hearts of those who fiercely resist his word. Whenever, then, men become strong against God, he so melts their hearts, that they cannot resist their fellow-mortals; and thus he mocks their confidence, or rather their madness. Lest then the Jews should still harbor any hope from the chance of war, the Prophet says that the Chaldeans would only come for the prey, for all would become subject to them.