2 Kings 20:9-11

Complete Jewish Bible

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.” ¹¹ Yesha‘yahu called out to Adonai, and he brought the shadow on the sundial of Achaz ten intervals backward after it had gone down that far.