Numbers 31:24

Purification After Battle

²³ or anything else that can survive a refiner's fire: You are to pass it through fire, after which it will be clean. Then it is to be purified with the water of impurity. Everything that cannot survive a refiner's fire is to be washed in water. ²⁴ Wash your clothes on the seventh day, after which you will be clean. Then you may enter the camp." ²⁵ Then the LORD told Moses,

Seventh Day

Be Clean

Leviticus 11:25

And anyone who carries their carcasses is to wash his clothes, since he will remain unclean until evening."

Leviticus 14:9

On the seventh day, he is to shave the hair on his head, chin, back, and eyebrows. After he has shaved all his hair, washed his clothes, and bathed himself with water, then he will be clean."

Leviticus 15:13

"When the one with the discharge is cleansed from his discharge, then he is to set aside for himself seven days for his cleansing. He is to wash his clothes and bathe with flowing water. Then he will be clean.

Numbers 19:19

The clean person is to sprinkle the unclean person on the third day and seventh day and then he is to purify himself on the seventh day, wash his clothes, and bathe with water. He is to be considered clean at evening.