Leviticus 13:9-17, 24-28

“Whenever someone has a serious and infectious skin disease, you must bring him to the priest. The priest will examine him; if there is a white swelling in the skin, the hair is turning white, and there is an open sore in the swelling, it is a chronic skin disease. The priest will pronounce him unclean. But he doesn’t need to quarantine him because he’s already given his diagnosis of unclean. If a serious disease breaks out that covers all the skin from head to foot, wherever the priest looks, the priest will make a thorough examination; if the disease covers his entire body, he will pronounce the person with the sore clean—since it has turned all white, he is clean. But if they are open, running sores, he is unclean. The priest will examine the open sores and pronounce him unclean. The open sores are unclean; they are evidence of a serious skin disease. But if the open sores dry up and turn white, he is to come back to the priest who will reexamine him; if the sores have turned white, the priest will pronounce the person with the sores clean. He is clean.

“When a person has a burn on his skin and the raw flesh turns into a reddish-white or white shiny spot, the priest is to examine it. If the hair has turned white in the shiny spot and it looks like it’s more than skin deep, a serious skin disease has erupted in the area of the burn. The priest will pronounce him unclean; it is a serious skin disease and infectious. But if on examination there is no white hair in the shiny spot and it doesn’t look to be more than skin deep but has faded, the priest will put him in quarantine for seven days. On the seventh day the priest will reexamine him. If by then it has spread over the skin, the priest will diagnose him as unclean; it is a serious skin disease and infectious. If by that time the shiny spot has stayed the same and has not spread but has faded, it is only a swelling from the burn. The priest will pronounce him clean; it’s only a scar from the burn.