Sit thou silent, and get thee into darkness. The second strophe begins, like the first, with a double imperative. The fallen people is recommended to hide its shame in silence and darkness, as disgraced persons do who shrink from being seen by their fellows.
Thou shalt no more be called The lady of kingdoms. Babylon can scarcely have borne this title in Isaiah's time, or at any earlier period, unless it were a very remote one. She had been secondary to Assyria for at least six hundred years when Isaiah wrote, and under Sennacherib was ruled by viceroys of his appointment.
But Isaiah's prophetic foresight enables him to realize the later period of Babylon's prosperity and glory under Nabopolassar and Nebuchadnezzar, when she became the inheritress of the greatness of Assyria, and exercised rule over a large portion of Western Asia.
Nebuchadnezzar was, no doubt, as he is called by both Ezekiel (Ezekiel 26:7) and Daniel (Daniel 2:37), a "king of kings;" and Babylon was then an empress-state, exercising authority over many minor kingdoms.
It is clear that, both in the earlier and the later chapters, the prophet realizes this condition of things (see Isaiah 13:19; Isaiah 14:4-6, Isaiah 14:12-17; as well as the present passage).