2 Kings 20:8

Hezekiah said to Isaiah Or rather, had said; for it is evident this was said before his recovery, though his recovery be mentioned before it. What shall be the sign that the Lord will heal me? He asks a sign, not because he distrusted the divine promise, but for the strengthening of his faith, which otherwise might have been shaken by the greatness of his danger, and by the contradiction between this and the prophet's former message.