Junius, for example, discusses Deuteronomy 22:8, which requires one to “make a railing for your roof.” This is a determination (given by God) that follows from a principle and its subsequent conclusion, namely, “no one must be injured” and “nothing that could injure anyone may be built,” respectively.4 The determination that roofs ought to have railings is suitable only if roofs in the community are designed such that they might be hazardous. Most single-family homes today do not require railings, for ordinarily roofs are not hazardous. Though this determination is no longer relevant, the
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