Isaiah 36:6

6 `Lo, thou hast trusted on the staff of this broken reed -- on Egypt -- which a man leaneth on, and it hath gone into his hand, and pierced it -- so [is] Pharaoh king of Egypt to all those trusting on him.

Isaiah 36:6 Meaning and Commentary

Isaiah 36:6

Lo, thou trustest in the staff of this broken reed, on Egypt,
&c.] His ally and auxiliary; and which is rightly called "the staff of a broken reed", if trusted to, and leaned upon, being weak and frail, and an insufficient ground of confidence to depend upon; the allusion seems to be to the cane or reed which grew upon the banks of the river Nile, in Egypt: whereon if a man lean, it will go into his hand, and pierce it;
the splinters of the broken reed being leaned on, will enter into a man's hand, and do him harm, instead of being a help to him to walk with: so is Pharaoh king of Egypt to all that trust in him;
pernicious and harmful, instead of being useful and helpful.

Isaiah 36:6 In-Context

4 And Rabshakeh saith unto them, `Say ye, I pray you, unto Hezekiah, `Thus said the great king, the king of Asshur, What [is] this confidence in which thou hast confided?
5 I have said: Only, a word of the lips! counsel and might [are] for battle: now, on whom hast thou trusted, that thou hast rebelled against me?
6 `Lo, thou hast trusted on the staff of this broken reed -- on Egypt -- which a man leaneth on, and it hath gone into his hand, and pierced it -- so [is] Pharaoh king of Egypt to all those trusting on him.
7 `And dost thou say unto me, Unto Jehovah our God we have trusted? is it not He, whose high places and whose altars Hezekiah hath turned aside, and saith to Judah and to Jerusalem, Before this altar ye do bow yourselves?
8 `And now, negotiate, I pray thee, with my lord the king of Asshur, and I give to thee two thousand horses, if thou art able to put for thee riders on them.
Young's Literal Translation is in the public domain.