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,

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;