Leviticus 14:49-52

49And he shall take, to purge the house from the defilement, two birds, and cedar-wood, and scarlet, and hyssop;

50and he shall kill one bird in an earthen vessel over running water;

51and 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;

52and 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;