2 Kings 18:20 in the King James Version
Thou sayest, (but they are but vain words,) I have counsel and strength for the war. Now on whom dost thou trust, that thou rebellest against me?
Context
19 Rabshakeh said to them, “Say now to Hezekiah, ‘The great king, the king of Assyria, says, “What confidence is this in which you trust?
20 You say (but they are but vain words), ‘There is counsel and strength for war.’ Now on whom do you trust, that you have rebelled against me?
21 Now, behold, you trust in the staff of this bruised reed, even in Egypt. If a man leans on it, it will go into his hand and pierce it. So is Pharaoh king of Egypt to all who trust on him.