Isaiah 36:5 in the King James Version
I say, sayest thou, (but they are but vain words) I have counsel and strength for war: now on whom dost thou trust, that thou rebellest against me?
Context
4 Rabshakeh said to them, “Now tell Hezekiah, ‘The great king, the king of Assyria, says, “What confidence is this in which you trust?
5 I say that your counsel and strength for the war are only vain words. Now in whom do you trust, that you have rebelled against me?
6 Behold, you trust in the staff of this bruised reed, even in Egypt, which 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 in him.