en_tn/lev/13/03.md

General Information:

Yahweh continues telling Moses and Aaron what the people must do.

skin of his body

Here "his" refers to the person with the skin disease.

infectious disease

a sickness that can spread easily from one person to another

he must pronounce him unclean

"the priest must pronounce the man unclean." The man whom other people must not touch is spoken of as if he were physically unclean. (See: rc://en/ta/man/jit/figs-metaphor)