49 To purify the house the priest must take two birds, a stick of cedar, some scarlet yarn, and a hyssop branch. 50 He will slaughter one of the birds over a clay pot filled with fresh water. 51 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. 52 When the priest has purified the house in exactly this way, 53 he will release the live bird in the open fields outside the town. Through this process, the priest will purify the house, and it will be ceremonially clean.
Matthew Henry's Commentary on Leviticus 14:49-53
Commentary on Leviticus 14:33-53
(Read Leviticus 14:33-53)
The leprosy in a house is unaccountable to us, as well as the leprosy in a garment; but now sin, where that reigns in a house, is a plague there, as it is in a heart. Masters of families should be aware, and afraid of the first appearance of sin in their families, and put it away, whatever it is. If the leprosy is got into the house, the infected part must be taken out. If it remain in the house, the whole must be pulled down. The owner had better be without a dwelling, than live in one that was infected. The leprosy of sin ruins families and churches. Thus sin is so interwoven with the human body, that it must be taken down by death.