Leviticus 13:5

13:5 The priest must then examine it on the seventh day, and if, as far as he can see, the infection has stayed the same and has not spread on the skin, then the priest is to quarantine the person for another seven days.

Leviticus 13:7

13:7 If, however, the scab is spreading further on the skin after he has shown himself to the priest for his purification, then he must show himself to the priest a second time.

Leviticus 13:58

13:58 But the garment or the warp or the woof or any article of leather which you wash and infection disappears from it is to be washed a second time and it will be clean.”