Jeremiah 52:7
Then the city was broken up, and all the men of war fled, and went forth out of the city by night by the way of the gate between the two walls, which was by the king’s garden; (now the Chaldeans were by the city round about:) and they went by the way of the plain.
The city was broken up while the Chaldeans surrounded it, and all the men of war fled by night through the gate between the two walls by the king's garden and went by the way of the plain. The verse belongs to the account of Judah's captivity completed under Zedekiah, Jerusalem's last king, when the city was destroyed and Zedekiah was taken prisoner in Babylon. The fall came after a year and a half of renewed siege and blockade, and no further detail is given about the escape it describes.
The capture happened in the fourth month, and that event was mourned with a fast in the fourth month during the captivity. The nighttime is explicitly called night, with the Hebrew word lah-yil, rather than being called day. The destruction was God's judgment on Jerusalem because the people would not keep the Sabbath holy, fulfilling the prophecy that the city would stand forever if they bore no burdens on the Sabbath but would be destroyed if they refused to listen, which came to pass within a few years. The verse is part of the account of Babylon's fall and judgment.
The daughters of Babylon are part of Babylon itself, just as the daughters of Jerusalem are part of Jerusalem and the daughters of Rabbah are part of Rabbah, so the daughters of mystic Babylon are part of the great Babylon to be thrown down like a millstone cast into the sea. That great Babylon embraces all corrupt Christianity, which, having rejected the announcement that the hour of judgment is come, was left forever by the Spirit, after which God's people are called out and destruction immediately follows. The account serves as a lesson and warning of the judgment and doom that comes upon cities and places that forget and defy God. The warning applies to cities and people who ignore repeated calls to turn from wickedness, whose warnings may go unheeded until their doom comes.