He is a leprous man, he [is] unclean
And so to be pronounced and accounted; only a leprous man is mentioned, there being no leprous women, having this sort of leprosy, their hair not falling off, or they becoming bald, usually; unless, as Ben Gersom observes, in a manner strange and wonderful:
the priest shall pronounce him utterly unclean;
as in any other case of leprosy:
his plague [is] in his head;
an emblem of such who have imbibed bad notions and erroneous principles, and are therefore, like the leper, to be avoided and rejected from the communion of the saints, ( Titus 3:10 ) ; and shows that men are accountable for their principles as well as practices, and liable to be punished for them.
The Brenton translation of the Septuagint is in the public domain.