Ezekiel 26 text walkthrough: the prophecy uses two distinct sets of pronouns — 'he' (Nebuchadnezzar) and 'they' (multiple later nations) — specifying different actors for different actions.

The prophecy opens in v.3 with 'many nations' coming like waves. It then shifts to 'he' (Nebuchadnezzar specifically) in vv.7–11, who will: destroy daughter villages, build a siege mound, breach the city gates, trample the streets, slay the people, break the towers. Then in v.12 the pronoun shifts to 'they,' who will: plunder the riches, break down the walls, lay the stones/timber/soil into the midst of the water (an extraordinarily specific action), and make it like the top of a rock. The 'never be rebuilt' prediction and the fishermen-casting-nets image belong to this second phase. Ra conflates both phases as if Nebuchadnezzar was supposed to do everything.