Numbers 5:2

“He shall remain unclean all the days during which he has the infection; he is unclean. He shall live alone; his place of habitation shall be outside the camp.

“The one to be cleansed shall then wash his clothes and shave off all his hair and bathe in water and be clean. Now afterward, he may enter the camp, but he shall stay outside his tent for seven days.

“Speak to the sons of Israel and say to them, ‘When any man has a discharge from his body, his discharge is unclean.

“If there is any person who will not humble himself on this same day, he shall be cut off from his people.

But there were some men who were unclean because of a dead person, so that they could not celebrate Passover on that day; so they came near before Moses and Aaron on that day.

But Yahweh said to Moses, “If her father had but spit in her face, would she not bear her dishonor for seven days? Let her be shut up for seven days outside the camp, and afterward she may be received again.”

‘The one who touches the corpse of any person shall be unclean for seven days.

Now there were four leprous men at the entrance of the gate; and they said to one another, “Why do we sit here until we die?