Leviticus 22:4
If one of Aaron's descendants has a skin disease or a discharge, he is not allowed to eat the holy offerings until he is clean. Anyone who touches anything made unclean by a dead body or by a man who has had a release of semen,If one of Aaron's descendants has a skin disease or a discharge, he is not allowed to eat the holy offerings until he is clean. Anyone who touches anything made unclean by a dead body or by a man who has had a release of semen,