Bible verses about Rab-shakeh (rabshakeh)
(From Nave's Topical Bible)

RAB-SHAKEH (RABSHAKEH) -(A title of an Assyrian officer) -Sent by Sennacherib against Jerusalem; undertakes to cause disloyalty to Hezekiah and the surrender of Jerusalem by a speech in the Jews' native language II Kings 18:17-36; 19:4, 8; Isaiah 36; 37