Nehemiah supervised the rebuilding of the wall. He did not build it by himself. Alternate translation: "We are doing a great work" (See: [[rc://en/ta/man/jit/figs-synecdoche]])
This rhetorical question is used to challenge Sanballat's request. This can be written as a statement. Alternate translation: "I cannot let the work stop and come down to you" (See: [[rc://en/ta/man/jit/figs-rquestion]])