Rabshakeh
Rabshakeh was the title — not a personal name — of the chief spokesman of the Assyrian king Sennacherib, sent with two other officials to demand Jerusalem's surrender from Hezekiah around 701 BC (2 Kings 18:17–37; Isaiah 36). The title likely means chief cupbearer or a senior court official. The Rabshakeh's speech before the walls of Jerusalem is one of the most dramatic episodes in the historical books: delivered in Hebrew so the people on the walls could understand, it combined psychological intimidation, theological argument (claiming the LORD himself had sent Assyria against Judah), and propaganda about Assyrian invincibility.
Hezekiah's officials pleaded with him to speak in Aramaic to avoid demoralizing the people, but he refused. Isaiah 37 records Hezekiah's prayer and Isaiah's oracle of reassurance — that Sennacherib would hear a rumor and return to his own land and fall by the sword — a prophecy fulfilled when the Assyrian army was struck by the LORD and Sennacherib was later killed by his sons.