'Valley of Hinnom' in the Bible

He burned incense in the Valley of Hinnom and burned his children in the fire, imitating the detestable practices of the nations the Lord had dispossessed before the Israelites.

He passed his sons through the fire in the Valley of Hinnom. He practiced witchcraft, divination, and sorcery, and consulted mediums and spiritists. He did a great deal of evil in the Lord’s sight, provoking Him.