What does Nehemiah 4:2 mean?

He said, 'What are these pathetic Jews doing? Do they really think they can fix this? Are they going to offer sacrifices? Will they finish in a day? Can they bring these burned stones back to life from this pile of rubble?' Nehemiah 4:2 - Modern Text Bible

(Sanballat ridicules the Jews, doubting their ability and mocking their faith and efforts.)