Leviticus 22:4-5 ▼

4 No man of the descendants of Aaron, who has leprosy or has a discharge, may eat of the holy gifts until he is clean. And one who touches anything made unclean by a corpse, or a man who has a seminal emission,

5 or a man who touches any swarming things by which he is made unclean, or touches any person by whom he is made unclean, whatever his uncleanness;