Bible Verses About Priests: While unclean could not perform any service

The LORD spoke to Moses, saying,

“Tell Aaron and his sons to separate themselves from the holy things of the children of Israel, which they make holy to me, and that they not profane my holy name. I am the LORD.

The priest shall take cedar wood, hyssop, and scarlet, and cast it into the midst of the burning of the heifer.

Then the priest shall wash his clothes, and he shall bathe his flesh in water, and afterward he shall come into the camp, and the priest shall be unclean until the evening.