Thematic Bible: Levitical ceremonies prescribed for

"And when [someone's] body {has} a skin sore on his skin and it is healed and a white swelling or a {pinkish} spot appears in the skin sore's place, then he shall show himself to the priest. And the priest shall examine [it], and {if} its appearance [is] deeper than the skin and its hair has changed to white, then the priest shall declare him unclean--it is an infectious skin disease; it has broken out in the skin sore. read more.
And if the priest examines it and {if} there is no white hair in it and it is not deeper than the skin and it [is] faded, then the priest shall confine him [for] seven days. But if it has spread further on the skin, then the priest shall declare him unclean--it [is] an infection. But if the spot has stayed [unchanged], it has not spread, it [is] the skin sore's scar, so the priest shall declare him clean.