'Scapegoat' in the Bible

Aaron is to cast lots over the two male goats one lot for the LORD and the other one for the scapegoat.

The male goat on which the lot fell for the scapegoat is to be brought alive into the LORD's presence to make atonement for himself. Then he is to send it into the wilderness."

The one who sent away the male goat as a scapegoat is to wash his clothes and bathe his body with water. After doing so, he may enter the camp.