Because the spoiler is come upon her, [even] upon Babylon,.... That is, Cyrus, with his army:
and her mighty men are taken; unawares, by surprise:
everyone of their bows is broken; they had no strength to withstand the enemy, and were obliged to yield at once; lay down their arms, and submit:
for the Lord God of recompences shall surely requite; that God to whom vengeance belongs, and will recompense it; who is a God of justice and equity, the Judge of all the earth; he will render tribulation to them that trouble his; and requite his enemies and the enemies of his people, in a righteous manner, for all the evil they have done, as literal, so mystical Babylon; see Revelation 18:6.