Isaiah 36:6 in the World English Bible
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.
Context
5 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?
6 Lo, thou trustest in the staff of this broken reed, on 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 in him.
7 But if thou say to me, We trust in the LORD our God: is it not he, whose high places and whose altars Hezekiah hath taken away, and said to Judah and to Jerusalem, Ye shall worship before this altar?