2 Kings 20:8-10

New Living Translation

⁸ Meanwhile, Hezekiah had said to Isaiah, “What sign will the Lord give to prove that he will heal me and that I will go to the Temple of the Lord three days from now?”

⁹ Isaiah replied, “This is the sign from the Lord to prove that he will do as he promised. Would you like the shadow on the sundial to go forward ten steps or backward ten steps?^[a]”

¹⁰ “The shadow always moves forward,” Hezekiah replied, “so that would be easy. Make it go ten steps backward instead.”