Leviticus 22:4

None of the offspring of Aaron who has a leprous disease or a discharge may eat of the holy things until he is clean. Whoever touches anything that is unclean through contact with the dead or a man who has had an emission of semen,

“ ‘If a descendant of Aaron has a defiling skin disease or a bodily discharge, he may not eat the sacred offerings until he is cleansed. He will also be unclean if he touches something defiled by a corpse or by anyone who has an emission of semen,

“If any of Aaron’s descendants has a skin disease or any kind of discharge that makes him ceremonially unclean, he may not eat from the sacred offerings until he has been pronounced clean. He also becomes unclean by touching a corpse, or by having an emission of semen,

“ ‘Anyone from Aaron’s offspring, if he is afflicted with a skin disease or a fluid discharge, shall not eat in the sanctuary until he is clean; and the one who touches any unclean person or a man from whom an emission of semen goes out,

What man soever of the seed of Aaron is a leper, or hath a running issue; he shall not eat of the holy things, until he be clean. And whoso toucheth any thing that is unclean by the dead, or a man whose seed goeth from him;