Leviticus 13:16-17

(16, 17) Or if the raw flesh turn again.—Rather, yet if the sound flesh changeth again and becometh, &c. As soon, however, as the patches of sound flesh resume the white colour, so that the whole body is again white, without exhibiting any spots, the patient is to betake himself to the priest, who, after assuring himself of the fact, will pronounce him clean.