See source sheet hereThese sources discuss the biblical commandment to build a מַעֲקֶה (ma'akeh, usually translated as a guardrail or fence) on a new roof, as stated in Deuteronomy 22:8. Commentators explore the meaning and scope of "ma'akeh," with some suggesting it represents a broader obligation to remove all hazards from one's property. They also analyze the phrase "כי יפול הנופל" ("lest the faller fall"), examining the interplay between Divine knowledge, human free will, and responsibility to prevent harm, even if an individual is "destined" to fall. Several sources also address the placement of this mitzvah within the broader biblical context, connecting it to themes of reward, human foresight, and ethical living that extend beyond a literal safety barrier.