What does Jeremiah 20:4 mean?

This is what the Lord says: 'I'm going to make you a terror to yourself and everyone you care about. They'll fall by the sword of their enemies while you watch. I'll hand all of Judah over to the king of Babylon, who will take them away or kill them.' Jeremiah 20:4 - Modern Text Bible

(God tells Pashhur he'll witness the suffering of his people and be powerless to stop it.)