(Devarim 1:27) "And you murmured in your tents": We are hereby taught they sat in their dwellings and spoke words as those of condolers, as it is written (Proverbs 26:22) "The words of the murmerers are like (those of) condolers" — but a knife descended from heaven and split their stomachs (viz. Bamidbar 14:29), as it is written (Proverbs, Ibid.) "and they (the words) descend to the chambers of the stomach."