Kings IV 18:19

19 And Rapsakes said to them, Say now to Ezekias, Thus says the king, the great king of the Assyrians, What this confidence wherein thou trustest?

Kings IV 18:19 In-Context

17 And the king of the Assyrians sent Tharthan and Raphis and Rapsakes from Lachis to king Ezekias with a strong force against Jerusalem. And they went up and came to Jerusalem, and stood by the aqueduct of the upper pool, which is by the way of the fuller's field.
18 And they cried to Ezekias: and there came to him Heliakim the son of Chelcias the steward, and Somnas the scribe, and Joas the son of Saphat the recorder.
19 And Rapsakes said to them, Say now to Ezekias, Thus says the king, the great king of the Assyrians, What this confidence wherein thou trustest?
20 Thou hast said, (but mere words,) counsel and strength for war. Now then in whom dost thou trust, that thou hast revolted from me?
21 See now, art thou trusting for thyself on this broken staff of reed, upon Egypt? whosoever shall stay himself upon it, it shall even go into his hand, and pierce it: so Pharao king of Egypt to all that trust on him.

The Brenton translation of the Septuagint is in the public domain.