49 And he shall take, to purge the house from the defilement, two birds, and cedar-wood, and scarlet, and hyssop; 50 and he shall kill one bird in an earthen vessel over running water; 51 and he shall take the cedar-wood and the hyssop and the scarlet, and the living bird, and dip them in the blood of the bird that was killed, and in the running water, and sprinkle the house seven times; 52 and he shall purge the house from the defilement with the blood of the bird, and with the running water, and with the living bird, and with the cedar-wood, and with the hyssop, and with the scarlet; 53 and he shall let the living bird loose out of the city into the open field; and he shall make atonement for the house, and it is 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.