Jeremiah 50:41

"Behold a people cometh from the north; and a great nation and many kings shall be stirred up from the uttermost parts of the earth. They lay hold on bow and spear; they are cruel, and have no mercy; their voice roareth like the sea; and they ride upon horses, everyone set in array, as a man to the battle, against thee, O daughter of Babylon. The king of Babylon hath heard the tidings of them, and his hands are feeble: anguish hath taken hold of him, and pangs as of a woman in travail. Behold, the enemy shall come like a lion from the pride of the Jordan against the strong habitation: for I will suddenly make them run away from it; and whoso is chosen, him will I appoint over it: for who is like me? and who will appoint me a time? and who is the shepherd that can stand before me? Therefore hear ye the counsel of Jehovah, that he hath taken against Babylon; and his purpose, that he hath purposed against the land of the Chaldeans: Surely they shall drag them away, even the little ones of the flocks; surely he shall make their habitation desolate over them. At the noise of the taking of Babylon the earth trembleth, and the cry is heard among the nations."

Jeremiah 50:41-43 here are the same as in Jeremiah 49:19-21 and in Isaiah 6:22-24. See my comments there.

"Many kings shall be stirred up (against Babylon) ..." (Jeremiah 50:41). "At the time Jeremiah wrote this, he could not have known the composition of the invading force against Babylon."[23] "Nevertheless the prophecy was literally fulfilled. `The many kings' is a reference to the vassal-kings assisting their overlord, this being the normal part of a suzerain-vassal treaty; and, when Cyrus conquered Babylon, his army contained a number of such vassal contingents."[24]

Harrison pointed out that Jeremiah 50:44-46 here repeat substantially the prediction against Edom (Jeremiah 49:19-21), but apply it to Babylon. The significant difference is that, "Little Edom's cry would be heard only as far as the Red Sea; but Babylon's anguished howl would be heard throughout the Near East![25]

This prophecy against Babylon is continued through the following chapter, which is the longest in Jeremiah. The two chapters are actually a single prophecy.