Jeremiah 50:37 - Ellicott's Commentary On The Whole Bible

And upon all the mingled people... — The phrase is the same as in Jeremiah 25:20. Here it is used of the auxiliaries of Babylon, which were probably as numerous, and to a large extent the same, as those of Persia. (See Note on Jeremiah 50:9.) The “treasures” point to the wealth in which Babylon exulted, and which gave to her the epithet of the “Golden City” (Isaiah 14:4). Even under the Persian monarchy Æschylus uses “gold-abounding” as a normal epithet for it. (Persœ, 53.)