"When a person has touched a ceremonially unclean thing inadvertently, such as the carcass of an unclean animal, or some unclean creeping thing, he will be unclean and guilty nevertheless.

But Aaron replied to Moses, "Today they've offered their sin and whole burnt offerings in the LORD's presence. Yet things such as these have happened to me. Had I eaten the sin offering today, would that have pleased the LORD?"

such a person who comes in contact with anything like this will become unclean until evening. As a result, he is not to eat the sacred things unless he has bathed himself with water.