2 Kings 20:6-8

6I will add fifteen years to your life, and I will rescue you and this city from the king of Assyria. I will defend this city for my own honor and for the sake of my servant David.’”

7Then Isaiah said, “Make an ointment from figs.” So Hezekiah’s servants spread the ointment over the boil, and Hezekiah recovered!

8Meanwhile, Hezekiah had said to Isaiah, “What sign will the Lord give to prove that he will heal me and that I will go to the Temple of the Lord three days from now?”