39On the seventh day the priest will go back and examine it again. If the mildew in the walls of the house has spread,
40the priest must order the stones that have the mildew to be torn out and thrown outside the city in an unclean place.
41He must have the entire inside of the house scraped. The plaster dust scraped off the walls must be dumped in an unclean place outside the city.
42The stones must be replaced, and the house must be plastered again.
43If the mildew develops again in the house after all this, 44the priest will examine it one more time. If it is a spreading type of mildew, the house is unclean. 45The house-stones, wood, and all the plaster-must be torn down and taken to an unclean place outside the city. 46Whoever goes into the house any time it is closed up will be unclean until evening. 47Whoever sleeps or eats in the house must wash his clothes.
48But if the priest comes and makes an examination and the mildew has not spread in the house after it is plastered again, the priest must declare the house clean. The mildew is gone. 49"The priest must take two birds, cedar wood, red yarn, and a hyssop sprig and use them to make the house clean. 50He must kill the one bird over a clay bowl containing fresh water. 51He must take the cedar wood, the hyssop sprig, the red yarn, and the living bird and dip them in the fresh water containing the blood of the bird that was killed. He must sprinkle the house seven times. 52So he must use the bird's blood, the fresh water, the living bird, the cedar wood, the hyssop, and the red yarn to make the house clean. 53Then he will let the living bird fly from the city into the open country. He will make peace with the LORD for the house, and it will be clean.
54"These are the instructions for any kind of mildew or fungus 55that infects clothing or houses 56and for skin diseases where there is a sore, a rash, or an irritated area. 57These instructions for skin diseases and mildew help you distinguish between what is clean and what is unclean."