Leviticus 22:4-6

ACV(i) 4 Whatever man of the seed of Aaron being a man with a leprous disease, or has an issue, he shall not eat of the holy things until he is clean. And whoever touches anything that is unclean by the dead, or a man whose seed goes from him, 5 or whoever touches any creeping thing, by which he may be made unclean, or a man of whom he may take uncleanness, whatever uncleanness he has, 6 the soul that touches any such shall be unclean until the evening. And shall not eat of the holy things unless he bathe his flesh in water.