1 tn The imperative with vav (ו) here and in v. 12 after another imperative are a good example of the use of the imperative to introduce a consequence. (See GKC 324-25 §110.f and see Gen 42:18. This is a common verb in this idiom.)
2 tn According to E. W. Bullinger (Figures of Speech, 954) both this question and the one in v. 13 are examples of rhetorical questions of prohibition / “don’t let this city be made a pile of rubble.”