Numbers 31:18-20

Complete Jewish Bible

¹⁸ But the young girls who have never slept with a man, keep alive for yourselves. ¹⁹ Pitch your tents outside the camp for seven days. Whoever has killed a person or touched the corpse of someone slain, purify yourselves on the third and seventh days, you and your captives. ²⁰ Also purify every garment, whether of skin or goat’s hair, and everything made of wood.”