2 Kings 20:8-10

Complete Jewish Bible

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?” ⁹ Yesha‘yahu said, “Here is the sign for you from Adonai that Adonai will do what he said: do you want the shadow [of the sundial] to go forward ten intervals or backward ten intervals? ¹⁰ Hizkiyahu answered, “It’s easy for the shadow to go down ten intervals. No, let the shadow return backward ten intervals.”