Leviticus 20:2-5

²Moreover, you shall tell the children of Israel, Whoever he be of the children of Israel, or of the strangers who sojourn in Israel, who gives of his seed to Molech; he shall surely be put to death: the people of the land shall stone him with stones. ³I also will set my face against that man, and will cut him off from among his people; because he has given of his seed to Molech, to defile my sanctuary, and to profane my holy name. ⁴If the people at the land do at all hide their eyes from that man, when he gives of his seed to Molech, and don`t put him to death; ⁵then I will set my face against that man, and against his family, and will cut him off, and all who play the prostitute after him, to play the prostitute with Molech, from among their people.