Leviticus 13:8

8 And if the priest see that, behold, the scab spreadeth in the skin, then the priest shall pronounce him unclean: it is a leprosy.

Leviticus 13:8 Meaning and Commentary

Leviticus 13:8

And [if] the priest see that, behold, the scab spreadeth in
the skin
Is not at a stay, as when he looked at it a second and third time:

then the priest shall pronounce him unclean;
a leprous person; to be absolutely so, as Jarchi expresses it; and so obliged to the birds (to bring birds for his cleansing), and to shaving, and to the offering spoken of in this section, as the same writer observes:

it [is] a leprosy:
it is a clear and plain case that it was one, and no doubt is to be made of it, it is a spreading leprosy: as sin is; it spreads itself over all the powers and faculties of the soul, and over all the members of the body; and it spreads more and more in every stage of life, unless and until grace puts a stop to it.

Leviticus 13:8 In-Context

6 And the priest shall look on him again the seventh day: and, behold, if the plague be somewhat dark, and the plague spread not in the skin, the priest shall pronounce him clean: it is but a scab: and he shall wash his clothes, and be clean.
7 But if the scab spread much abroad in the skin, after that he hath been seen of the priest for his cleansing, he shall be seen of the priest again:
8 And if the priest see that, behold, the scab spreadeth in the skin, then the priest shall pronounce him unclean: it is a leprosy.
9 When the plague of leprosy is in a man, then he shall be brought unto the priest;
10 And the priest shall see him: and, behold, if the rising be white in the skin, and it have turned the hair white, and there be quick raw flesh in the rising;