So Jacob said to his family and those who were with him, “Get rid of the foreign gods which you have, wash yourselves until you are ritually clean, and change your clothes.
So the Lord said to Moses, “Go to the people, and tell them they have two days to get ready. They must set themselves apart as holy. Have them wash their clothes
“Everyone who killed a person or touched a dead body must stay outside the camp seven days. You and your prisoners of war must use the ritual water on the third and seventh days in order to take away your sin.