2 Kings 20:5-8

5‘Go back! Say to Hezekiah, the leader of my people, “This is what the Lord says, the God that your ancestor David worshipped. I have heard your prayer and I have seen your tears. I will make you well again. On the third day from now you will go to the Lord's temple.

6I will let you live for 15 more years. I will rescue you and this city from the power of the king of Assyria. I will keep Jerusalem safe, because I do what is right and I made a promise to my servant David.” ’

7Then Isaiah said, ‘Take some figs to make a medicine.’ So the king's servants did what Isaiah had said. They put the medicine on Hezekiah's boil. He became well again.

8Hezekiah had asked Isaiah, ‘What will show me that the Lord will make me well again? How will I know that I will go up to the Lord's temple on the third day from now?’