John Gill's Exposition of the Whole Bible
Jeremiah 50:15
Shout against her round about,.... As soldiers do when they make an assault upon a place, to encourage one another, and dismay the besieged; just as the Israelites did when they surrounded Jericho:
she hath given her hand; submitted to the conqueror, and sued for mercy. The Targum is,
"she is delivered into her hand;''
the hand of the Persians, by two princes of Babylon, who went off to Cyrus, and showed him how to take the city; or rather it was delivered by Zopyrus into the hands of Darius:
her foundations are fallen, her walls are thrown down; not at the taking of it by Cyrus, but afterwards by Darius; for this respects the conclusion of its destruction, which was progressive and gradual:
for it [is] the vengeance of the Lord: which he decreed, threatened, and took, and that on account of his people, who had been ill treated here; so the Targum,
"for it is the vengeance of the people of the Lord:''
and her enemies are called upon to
take vengeance upon her; as she hath done, do unto her; that is, to execute the Lord's vengeance, of which the Persians were the instruments; and who were to go according to the law of retaliation, which is a just one; to do to Babylon as she had done to Jerusalem, and other places, she had utterly destroyed. These words seem to be referred to, and much the same are used of mystical Babylon, Revelation 18:6.