What does Jeremiah 38:2 mean?

He was saying, 'This is what the Lord says: Anyone who stays in this city will die by sword, famine, or disease. But anyone who goes out and surrenders to the Babylonians will live; they'll escape with their lives.' Jeremiah 38:2 - Modern Text Bible

(Jeremiah tells the people that staying in Jerusalem means certain death, but surrendering to Babylon is the only way to survive.)