In The Tanakh
In the Tanakh, worshiping Shemesh is forbidden and is punishable by stoning. Worshiping Shemesh was said to include bowing to the east, in the direction of the sun, as well as rituals related to horses and chariots, which were associated with her. King Josiah was also said to have abolished sun worship (among others).
Read more about this topic: Shapash (Canaanite Goddess)