Charles Ellicott Commentary Jeremiah 51:6

"Flee out of the midst of Babylon, and save every man his life; be not cut off in her iniquity: for it is the time of Jehovah`s vengeance; he will render unto her a recompense." — Jeremiah 51:6 (ASV)

Flee out of the midst of Babylon. —The words reproduce the call of Jeremiah 50:8 with a fresh motive. The city was doomed. It was wrong for those who had not been guilty of her sins to involve themselves in her destruction. The call is reproduced, as referring to the mystical Babylon, in Revelation 18:4.