Leviticus 20 is a highly effective reinforcement of chapter 18, so that these two chapters frame chapter 19 in a unified section concerning Israelite lifestyle. However, chapter 20 also reiterates parts of chapter 19, so it serves as a fitting conclusion to the section as a whole. By contrast with the apodictic formulations (straightforward statements of principle: “You shall . . .” or “You shall not . . .”) of chapter 18, chapter 20 uses casuistic formulations to emphasize a variety of severe punishments: if a person does (offense), as a result that person will suffer (penalty).
Leviticus 18:21 briefly forbids Molek worship, but 20:1–5 places this case up front, adding stoning by the community plus the divine penalty of “cutting off.” Sympathizers are also to be “cut off.” The Molek wor…