Numbers 31:23-25

World English Bible

²³ everything that may withstand the fire, you shall make to go through the fire, and it shall be clean; nevertheless it shall be purified with the water for impurity. All that doesn’t withstand the fire you shall make to go through the water. ²⁴ You shall wash your clothes on the seventh day, and you shall be clean. Afterward you shall come into the camp.”

²⁵ Yahweh spoke to Moses, saying,