Leviticus 14:30-39

³⁰And he will make an offering of one of the doves or the young pigeons, such as he is able to get;

³¹And of these, he will give one for a sin-offering and one for a burned offering, with the meal offering; and the priest will take away the sin of him who is to be made clean before the Lord.

³²This is the law for the man who has the disease of the leper on him, and who is not able to get that which is necessary for making himself clean.

³³And the Lord said to Moses and Aaron,

³⁴When you have come into the land of Canaan which I will give you for your heritage, if I put the leper's disease on a house in the land of your heritage,

³⁵Then let the owner of the house come and say to the priest, It seems to me that there is a sort of leper's disease in the house.

³⁶And the priest will give orders for everything to be taken out of the house, before he goes in to see the disease, so that the things in the house may not become unclean; and then the priest is to go in to see the house;

³⁷And if he sees that the walls of the house are marked with hollows of green and red, and if it seems to go deeper than the face of the wall;

³⁸Then the priest will go out of the door of the house, and keep the house shut up for seven days:

³⁹And the priest is to come again on the seventh day and have a look and see if the marks on the walls of the house are increased in size;