Leviticus 13:22

20 And if, when the priest seeth it, behold, it be in sight lower than the skin, and the hair thereof be turned white; the priest shall pronounce him unclean: it is a plague of leprosy broken out of the boil.

21 But if the priest look on it, and, behold, there be no white hairs therein, and if it be not lower than the skin, but be somewhat dark; then the priest shall shut him up seven days:

And if it spread much abroad in the skin, then the priest shall pronounce him unclean: it is a plague.

23 But if the bright spot stay in his place, and spread not, it is a burning boil; and the priest shall pronounce him clean.

24 Or if there be any flesh, in the skin whereof there is a hot burning, and the quick flesh that burneth have a white bright spot, somewhat reddish, or white;

This was said to Israel at a particular time, so it is wise to read it together with the surrounding text. Do read the surrounding verses too, because the context often says more than a single verse.

Compare

BSB
If it spreads any further on the skin, the priest must pronounce him unclean; it is an infection.
KJV
And if it spread much abroad in the skin, then the priest shall pronounce him unclean: it is a plague.
WEB
If it spreads in the skin, then the priest shall pronounce him unclean. It is a plague.
ASV
And if it spread abroad in the skin, then the priest shall pronounce him unclean: it is a plague.
DARBY
and if it spread much in the skin, then the priest shall pronounce him unclean: it is the sore.
BLB
And if it spreads at all in the skin, then the priest shall pronounce him unclean; it [is] a plague.
ÅB
Brer det seg da videre ut på huden, skal presten si ham uren; det er spedalskhet.
OTB
Hvis det sprer seg på huden, skal presten erklære dem urene; det er en infeksjon.
B1930
Brer det sig da videre ut på huden, skal presten si ham uren; det er spedalskhet.

Study notes (Tyndale)

Original text and word study