2 Kings 18:17-21

17And the king of Assyria sent Tartan and Rab-saris and Rabshakeh from Lachish to king Hezekiah with a great army unto Jerusalem. And they went up and came to Jerusalem. And when they were come up, they came and stood by the conduit of the upper pool, which is in the highway of the fuller’s field. 18And when they had called to the king, there came out to them Eliakim the son of Hilkiah, who was over the household, and Shebnah the scribe, and Joah the son of Asaph the recorder.

19And Rabshakeh said unto them, Say ye now to Hezekiah, Thus saith the great king, the king of Assyria, What confidence is this wherein thou trustest? 20Thou sayest (but they are but vain words), There is counsel and strength for the war. Now on whom dost thou trust, that thou hast rebelled against me? 21Now, behold, thou trustest upon the staff of this bruised reed, even upon Egypt; whereon if a man lean, it will go into his hand, and pierce it: so is Pharaoh king of Egypt unto all that trust on him.