52 In this way he shall purify the house with the bird's blood, the fresh water, the live bird, the cedar wood, the hyssop, and the red cord.
53 Then he shall let the live bird fly away outside the city over the open fields. In this way he shall perform the ritual of purification for the house, and it will be ritually clean.
54 These are the laws about dreaded skin diseases;
55-56 sores, boils, or inflammations; and about mildew in clothes or houses.
57 These laws determine when something is unclean and when it is clean.