Leviticus 14:38-44
38 then the priest must go out of the house, to the entrance of the house, and he must quarantine the house for seven days (see Figure 1, p. 119).
39 Then the priest must return on the seventh day and examine the house. If the lesion has disappeared or turned a lighter or darker shade of red or green, the affected area must be scraped and the priest must then pronounce the house rid of this defilement.
If, however, the lesion has spread on the walls of the house, the house must be purged, as follows:
40 The priest must order that the stones upon which the lesion is found be removed, and those who remove them must dispose of them outside the city, to a designated place that either already is or that will thereby become defiled. As long as defiled stones are in this place, anyone who enters it will become defiled.
41 In addition to removing the affected stones, the workers must scrape out the house from the inside, but only all around the vicinity of the removed stones. They must pour out the mortar dust that they removed outside the city—specifically, into a defiled place, as they did with the stones.
42 They must then take other, unaffected stones and bring them to replace the removed stones. One of the workers must take other mortar dust, and plaster the new stones into the wall of the house.
43 After this purging process, the house must be quarantined for another week. The seventh day of the first quarantine week also counts as the first day of the second quarantine week.
If, after this, the lesion erupts again in the house—after the workers had removed the stones, and after the wall of the house had been scraped around the area of the removed stones, and after the wall had been repaired and re-plastered—the house must be demolished, as will be described presently.
If the lesion does not reappear, the priest must declare the house rid of this defilement and purify it by means of the procedure that will be described later.
44 As stated, the priest must examine the house after the first week of quarantine. If the lesion did not spread during the first week of quarantine, the priest must quarantine the house for a second week, after which he must come and examine it again. If the lesion has disappeared or turned a lighter or darker shade of red or green, the affected area must be removed and the priest must then pronounce the house rid of this defilement and proceed to purify it according to the process that will be described later.
If, however, the lesion in the house spread during the second week, the affected stones must be removed, the area around them scraped, all that was removed deposited in a place designated for defilement outside the city, the wall re-plastered with unaffected stones, and the house quarantined for a third week. The seventh day of the second quarantine week also counts as the first day of the third quarantine week.
If the tzara’at returns after this third week, this indicates conclusively that it is an onerous tzara’at-lesion in the house; the house is defiled.
