Leviticus 14:4-6, 49-52

he will perform a purification ceremony, using two live birds that are ceremonially clean, a stick of cedar, some scarlet yarn, and a hyssop branch. The priest will order that one bird be slaughtered over a clay pot filled with fresh water. He will take the live bird, the cedar stick, the scarlet yarn, and the hyssop branch, and dip them into the blood of the bird that was slaughtered over the fresh water.

To purify the house the priest must take two birds, a stick of cedar, some scarlet yarn, and a hyssop branch. He will slaughter one of the birds over a clay pot filled with fresh water. He will take the cedar stick, the hyssop branch, the scarlet yarn, and the live bird, and dip them into the blood of the slaughtered bird and into the fresh water. Then he will sprinkle the house seven times. When the priest has purified the house in exactly this way