Isaiah 36:6

36:6 Look, you must be trusting in Egypt, that splintered reed staff. If someone leans on it for support, it punctures his hand and wounds him. That is what Pharaoh king of Egypt does to all who trust in him!

Ezekiel 29:6-7

29:6 Then all those living in Egypt will know that I am the Lord

because they were a reed staff for the house of Israel;

29:7 when they grasped you with their hand, you broke and tore their shoulders,

and when they leaned on you, you splintered and caused their legs to be unsteady.