Thematic Bible: For those who had recently killed someone in battle

"You are to remain outside the camp for seven days. All of you and your prisoners who have killed a person or touched the dead are to purify yourselves on the third day and the seventh day. Also purify everything: garments, leather goods, things made of goat hair, and every article of wood." Then Eleazar the priest said to the soldiers who had gone to battle, "This is the legal statute the Lord commanded Moses: read more.
Only the gold, silver, bronze, iron, tin, and lead- everything that can withstand fire-put through fire, and it will be clean. It must still be purified with the purification water. Anything that cannot withstand fire, put through the water. On the seventh day wash your clothes, and you will be clean. After that you may enter the camp."