Here "coming on you" is an idiom that means "to experience" something. AT: "You will experience the terror, the pit, and a trap" or "You will be terrified, and you will fall into pits and traps" (See: [[rc://en/ta/man/translate/figs-idiom]])
Yahweh speaks of himself by name to express the certainty of what he is declaring. See how you translated this in [Jeremiah 1:8](../01/07.md). AT: "this is what Yahweh has declared" or "this is what I, Yahweh, have declared" (See: [[rc://en/ta/man/translate/figs-123person]])
# fall into the pit ... caught in the trap
Here "the pit" and "the trap" represent all the different bad things that will happen to the people. People will run away to escape one bad thing but they will just experience another bad thing. (See: [[rc://en/ta/man/translate/figs-synecdoche]])