Charles Ellicott 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 thy jaws. — An allusion to the ancient way of taking and destroying the crocodile, otherwise invulnerable to their arms.

Fish of thy rivers shall stick unto thy scales. — As the crocodile, the lord of the Nile, represents the royal power of Egypt, so the fish represent the people dependent upon him. Pharaoh is not to fall alone, but shall drag his people with him into a common ruin.