Leviticus 20:2-5

2“Tell the Israelites, ‘Any Israelite or foreigner living in Israel who gives any of his children to Molech must be put to death. The people of the land are to stone him. 3And I will set My face against that man and cut him off from his people, because by giving his offspring to Molech, he has defiled My sanctuary and profaned My holy name.

4And if the people of the land ever hide their eyes and fail to put to death the man who gives one of his children to Molech, 5then I will set My face against that man and his family and cut off from among their people both him and all who follow him in prostituting themselves with Molech.