Jeremiah 50:14

The prophet calls to the Medes and Persians, with those who should come with them to their assistance, to put themselves in military order ready to come up against Babylon. The Persians (as was noted before) were very famous for the bow, therefore he speaketh unto them as an army of archers, to shoot at the Babylonians, and to spare no arrows; because Babylon had sinned against the Lord exceedingly, as Genesis 13:13, by their idolatry, luxury, and cruel usage of the Jews, &c.