Albert Barnes Commentary Ezekiel 29:4

"And I will put hooks in thy jaws, and I will cause the fish of thy rivers to stick unto thy scales; and I will bring thee up out of the midst of thy rivers, with all the fish of thy rivers which stick unto thy scales." — Ezekiel 29:4 (ASV)

Hooks in your jaws – Compare (Job 41:2). The crocodile is thus rendered an easy prey.

Fish of your rivers – that is, the allies of Egypt will be involved in her ruin.