RobH_en_tn/jer/16/16.md

I will send for many fishermen ... so they will fish the people out

Yahweh speaks of enemy armies who will attack and kill the people as if they were fishermen who are catching fish. (See: rc://en/ta/man/translate/figs-metaphor)

this is Yahweh's declaration

Yahweh speaks of himself by name to express the certainty of what he is declaring. See how you translated this in Jeremiah 1:8. Alternate translation: "this is what Yahweh has declared" or "this is what I, Yahweh, have declared" (See: rc://en/ta/man/translate/figs-123person)

I will send for many hunters so they will hunt for them among

Yahweh speaks of enemy armies who will attack and kill the people as if they were hunters who are hunting animals. (See: rc://en/ta/man/translate/figs-metaphor)