Leviticus 13:4-6

The Voice

⁴ But if the patch on the skin is white and does not appear to go deep beneath the skin, and the hair on it has not turned white, then the priest will quarantine the person for seven days. ⁵ When the seventh day arrives, the priest will examine the affected area again; and if the priest thinks it has not grown worse and has not spread to other parts of the skin, then the priest will continue the quarantine for another seven days. ⁶ At the end of the second seven days, the priest will examine the person again; and if the affected area has faded and has not spread to any other part of the body, then the priest will pronounce that he is clean and suffers only some minor skin problem. The person is to wash his garments and must be considered clean again.