Leviticus 13 · a question people ask
Why did the leper have to live outside the camp?
This chapter gives the rule without the reason: "He shall dwell alone. His dwelling shall be outside of the camp" (13:46). Numbers gives the reason. The LORD commanded "that they put out of the camp every leper" (Numbers 5:2), "so that they don’t defile their camp, in the midst of which I dwell" (Numbers 5:3). Leviticus says the same of uncleanness in general: "so they will not die in their uncleanness when they defile my tabernacle that is among them" (15:31). The rule lasted as long as the plague: "All the days in which the plague is in him he shall be unclean" (13:46). And there was a way back. The next chapter opens with "the law of the leper in the day of his cleansing" (14:2), when "the priest shall go out of the camp" to examine him (14:3).
The verses
“All the days in which the plague is in him he shall be unclean. He is unclean. He shall dwell alone. His dwelling shall be outside of the camp.”
“The LORD spoke to Moses, saying, “Command the children of Israel that they put out of the camp every leper, everyone who has a discharge, and whoever is unclean by a corpse. You shall put both male and female outside of the camp so that they don’t defile their camp, in the midst of which I dwell.” The children of Israel did so, and put them outside of the camp; as the LORD spoke to Moses, so the children of Israel did.”
““‘Thus you shall separate the children of Israel from their uncleanness, so they will not die in their uncleanness when they defile my tabernacle that is among them.’””
“The LORD spoke to Moses, saying, “This shall be the law of the leper in the day of his cleansing: He shall be brought to the priest, and the priest shall go out of the camp. The priest shall examine him. Behold, if the plague of leprosy is healed in the leper,”