‘Then the Rabshakeh stood and cried with a loud voice in the Judean language, and said, “Hear the words of the great king, the king of Assyria, ‘Thus says the king, Do not let Hezekiah deceive you, for he will not be able to deliver you. Nor let Hezekiah make you trust in Yahweh, saying, “Yahweh will surely deliver us, and there will not be a giving of this city into the hand of the king of Assyria.” '
The Rabshakeh now turns his attention more directly to the people. All pretence is now thrown overboard. Note again the reference to the Great King and the disdainful reference to ‘Hezekiah'. The insult clearly shows that they do not expect Hezekiah to yield (he is not attempting to win him over) and that his words are therefore simply seeking to undermine the confidence and morale of the people. The message is simple. Hezekiah will not be able to deliver them. Nor will Yahweh be able to deliver them.
It is clear that his intelligence sources had informed him that there were voices in the city saying, ‘Trust in Yahweh', which was, of course, the message of Isaiah. This explains his words here. Let them recognise that such an idea was ridiculous. This latter was his first mistake, which he would shortly develop, for what his intelligence sources had failed to explain to him was the real power of Yahweh, and that Yahweh was the living God.
Note the constant reference to ‘the king of Assyria.' He wants them to recognise who they are dealing with. What chance do they have against this great and mighty king, the Great King? Notice also the impersonal ‘there will not be a giving'. He does not want their minds to associate the words too directly with Yahweh in case they thought that Yahweh might deliver them. It is a perfect example of balanced diplomacy.