2 Kings 20:7-9

21st Century King James Version

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?”

⁹ And Isaiah said, “This sign shalt thou have of the Lord, that the Lord will do the thing that He hath spoken: Shall the shadow go forward ten degrees or go back ten degrees?”