Melachim Bais 20:10-12

Orthodox Jewish Bible

¹⁰ And Chizkiyahu (Hezekiah) answered, It is a simple matter for the tzel to go forward eser ma’alot; no, but let the tzel return backward eser ma’alot.

¹¹ And Yeshayah HaNavi cried out unto Hashem; and He brought the tzel (shadow) eser ma’alot backward, by which it had gone on the ma’alot Achaz (sundial of Ahaz).

¹² At that time Berodach Baladan Ben Baladan Melech Bavel sent sefarim and a minchah unto Chizkiyahu (Hezekiah); for he had heard that Chizkiyahu had been ill.