2 Kings 20:6-8

King James Version

⁶ And I will add unto thy days fifteen years; and I will deliver thee and this city out of the hand of the king of Assyria; and I will defend this city for mine own sake, and for my servant David's sake.

⁷ And Isaiah said, Take a lump of figs. And they took and laid it on the boil, and he recovered.

⁸ And Hezekiah said unto Isaiah, What shall be the sign that the Lord will heal me, and that I shall go up into the house of the Lord the third day?