'Scab' in the Bible

"When a person has a swelling or a scab in the skin on his body that turns white in appearance and appears to be more extensive than skin deep, he is to be brought to Aaron the priest or to one of his sons among the priests.

"On the next seventh day, the priest is to examine him again. If the skin rash didn't become dull and it didn't spread in the skin, then the priest is to pronounce him clean: it's a scab. He is to wash his clothes and be clean.

But if the scab did spread in the skin after he presented himself to the priest for cleansing, then he is to show himself a second time to the priest.

When the priest examines him and determines that the scab did, in fact, spread in his skin, then the priest is to pronounce him unclean, since it's an infectious skin disease."

If the scab remains in place and doesn't spread, then it's the scab from the boil. The priest is to declare him clean."

When the priest examines the skin rash on the seventh day and finds that indeed the scab did not spread, there's no yellowish hair on it, and the scales don't appear more extensive than skin deep,

then he is to be shaven, but the scab is not to be shaved off. The priest is to isolate him a second time for seven days.

The priest is to examine the scab on the seventh day. If, indeed, the scab hasn't spread on the skin and it doesn't appear more extensive than skin deep, then the priest is to declare him clean. He is to wash his garments and be clean.

If, in his opinion, the scab remained the same and a black hair grew in it, then the scab has healed. He's clean. The priest is to declare him clean.