Esias 36:6

6 Behold, thou trustest on this bruised staff of reed, on Egypt: as a man leans upon it, it shall go into his hand, and pierce it: so is Pharao king of Egypt and all that trust in him.

Esias 36:6 In-Context

4 And Rabsaces said to them, Say to Ezekias, Thus says the great king, the king of the Assyrians, Why art thou secure?
5 Is war carried on with counsel and words of the lips? and now on whom dost thou trust, that thou rebellest against me?
6 Behold, thou trustest on this bruised staff of reed, on Egypt: as a man leans upon it, it shall go into his hand, and pierce it: so is Pharao king of Egypt and all that trust in him.
7 But if ye say, We trust in the Lord our God;
8 yet now make an agreement with my lord the king of the Assyrians, and I will give you two thousand horses, if ye shall be able to set riders upon them.

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