Charles Ellicott Commentary Jeremiah 51:30

"The mighty men of Babylon have forborne to fight, they remain in their strongholds; their might hath failed; they are become as women: her dwelling-places are set on fire; her bars are broken." — Jeremiah 51:30 (ASV)

The mighty men of Babylon have forborn to fight. —The verses that follow paint the capture of the city by the stratagem related in the Note on Jeremiah 50:24. Those who have burned are, of course, the invaders. They here begin by setting the houses of the city on fire and breaking open the gates that led from the river into the streets of the city, while the panic-stricken people fled to their citadel in despair.