Isaiah 36:12

12.And Rabshakeh said. Hence we see the fierceness and insolence of the enemy, and hence also it is evident that Hezekiah’s kingdom was on the brink of ruin; for here Rabshakeh speaks like a conqueror, and does not address Hezekiah as a king, but as if he had been his slave. When therefore we see Rabshakeh swelled with so much pride, we ought at the same time to recollect that Hezekiah was entirely overwhelmed and destitute of all confidence, so that he was looked upon as ruined. Hence we also infer that Rabshakeh was not sent for the purpose of offering any conditions of peace, but rather to obtain an unconditional surrender, and to strike the people with alarm; for Sennacherib had sent him for this purpose with a powerful army. Hence also he boasts that he has nothing to do with the king, that he addresses the people for their advantage, and, in order to terrify them still more, mentions the distress and calamities into which they will throw themselves if they choose to obey Hezekiah; that they will perish through hunger, and will be compelled to eat and drink what is revolting; and therefore, that their wisest course will be to surrender in good time, and to provide for their safety.