Leviticus 13:25

25 the priest is to examine the spot, and if the hair in it has turned white, and it appears to be more than skin deep, it is a defiling disease that has broken out in the burn. The priest shall pronounce them unclean; it is a defiling skin disease.

Read Leviticus 13:25 Using Other Translations

Then the priest shall look upon it: and, behold, if the hair in the bright spot be turned white, and it be in sight deeper than the skin; it is a leprosy broken out of the burning: wherefore the priest shall pronounce him unclean: it is the plague of leprosy.
the priest shall examine it, and if the hair in the spot has turned white and it appears deeper than the skin, then it is a leprous disease. It has broken out in the burn, and the priest shall pronounce him unclean; it is a case of leprous disease.
the priest must examine it. If he finds that the hair in the affected area has turned white and the problem appears to be more than skin-deep, a skin disease has broken out in the burn. The priest must then pronounce the person ceremonially unclean, for it is clearly a serious skin disease.

What does Leviticus 13:25 mean?

John Gill's Exposition of the Bible
Leviticus 13:25

Then the priest shall look upon it
And examine it, whether it has the marks and signs of a leprosy or not, such as follow: behold, [if] the hair in the bright spot be turned white;
which before was black, or of another colour from white, and is now, turned into the whiteness of chalk, as the Targum of Jonathan: and it [be in] sight deeper than the skin;
the same Targum is,

``and its sight or colour is deeper in being white like snow, more than the skin;''
but this respects not the colour of it, as appearing to the sight, but the depth of the spot, going below the skin into the flesh, which, with the change of hair, are the two signs of leprosy, ( Leviticus 13:3 ) ; it [is] a leprosy broken out of the burning;
which sprung from thence, and what that had issued in: wherefore the priest shall pronounce him unclean;
a leper, and to be treated as such: it [is] the plague of leprosy;
being a plain case, according to the rules by which it was to be judged of.
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