Isaiah 36:12

But Rabshakeh said, Hath my master sent me to thy master and to thee to speak these words, on a secret mission ? Hath he not sent me to the men that sit upon the wall, that they may eat their own dung and drink their own piss with you? The messengers of Sennacherib purposely spoke in the Hebrew tongue and with a loud voice, in order to hold before the defenders of the city the fate which awaited them if they would not yield, namely, that of a most terrible starvation, which would drive them to the last extreme in providing food and drink for themselves.