2 Kings 20:10 WEB

⁸  Hezekiah said to Isaiah, What shall be the sign that Yahweh will heal me, and that I shall go up to the house of Yahweh the third day?

⁹  Isaiah said, This shall be the sign to you from Yahweh, that Yahweh will do the thing that he has spoken: shall the shadow go forward ten steps, or go back ten steps?

¹⁰  Hezekiah answered, It is a light thing for the shadow to decline ten steps: nay, but let the shadow return backward ten steps.

¹¹  Isaiah the prophet cried to Yahweh; and he brought the shadow ten steps backward, by which it had gone down on the dial of Ahaz.

¹²  At that time Berodach-baladan the son of Baladan, king of Babylon, sent letters and a present to Hezekiah; for he had heard that Hezekiah had been sick.