Leviticus 20:2

Again, thou shalt say to the children of Israel, Whosoever he be of the children of Israel, or of the strangers that sojourn in Israel, that giveth any of his seed unto Molech, in the double sin of masturbation or onanism and idolatry, or, more likely, in immolating children, Leviticus 18:21, he shall surely be put to death; the people of the land shall stone him with stones. The offender, after the forms of the law had been observed, Deuteronomy 17:6; Deuteronomy 19:15, was to suffer summary execution by being stoned and literally buried under the thrown stones.