2 Kings 20:6-8

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

7Then Isaiah said, “Bring a lump of pressed figs.” So they brought it and applied it to his infected skin, and he recovered.

8Hezekiah had asked Isaiah, “What is the sign that the Lord will heal me and that I will go up to the Lord’s temple on the third day?”