2 Kings 20:6-8

Complete Jewish Bible

⁶ I will add fifteen years to your life. Also I will rescue you and this city from the power of the king of Ashur; I will defend this city for my own sake and for my servant David’s sake.’” ⁷ Then Yesha‘yahu said, “Prepare a fig-plaster.” They brought it and laid it on the inflammation, so that he would recover.

⁸ Hizkiyahu said to Yesha‘yahu, “What sign will there be that Adonai will heal me and that I will be able to go up to the house of Adonai on the third day?”