Shout against her round about: she hath given her hand: her foundations are fallen, her walls are thrown down: for it is the vengeance of the LORD: take vengeance upon her; as she hath done, do unto her.
Shout against her round about - inspirit one another to the onset with the battle-cry.
She hath given her hand - an idiom for submitted to the conquerors (1 Chronicles 29:24, margin; Lamentations 5:6).
As she hath done, do unto her - just retribution in kind. She had destroyed many, so must she be destroyed (Psalms 137:8). So as to spiritual Babylon (Revelation 18:6). This is right, because "it is the vengeance of the Lord;" but this will not justify private revenge in kind (Matthew 5:44; Romans 12:19-21); even the Old Testament law forbade this, though breathing a sterner spirit than the New Testament (Exodus 23:4-5; Proverbs 25:21-22).