World Wide Study Bible
a Bible passage
15. families—the tribes or clans composing the various kingdoms of Babylon; the specification of these aggravates the picture of calamity (Jer 25:9).
throne at … gates—the usual place of administering justice. The conquering princes will set up their tribunal there (Jer 39:3, 5; 52:9). Or the reference is to the military pavilion (Jer 43:10) [Maurer].