Isaiah 36:4, 6

And 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?

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 to all that trust on him.