Isaiah 36:15

Neither let Hezekiah make you trust in the Lord,.... Hezekiah trusted in the Lord himself, and he endeavoured, both by his own example, and by arguments, to persuade his people to do so likewise; of this Rabshakeh was sensible, and was more afraid of this than of any thing else, and, therefore laboured this point more than any other; see

2 Chronicles 32:6;

saying, the Lord will surely deliver us, this city shall not be delivered into the hand of the king of Assyria: which he might say with the greatest confidence, since the Lord had promised to defend it,

Isaiah 31:5 and especially if his sickness, and recovery out of it, and promises then made to him, were before this, as some think; since it is expressly promised by the Lord, that he would deliver him and the city out of the hand of the king of Assyria, Isaiah 38:6.