Numbers 31:18-20

Revised Standard Version

¹⁸ But all the young girls who have not known man by lying with him, keep alive for yourselves. ¹⁹ Encamp outside the camp seven days; whoever of you has killed any person, and whoever has touched any slain, purify yourselves and your captives on the third day and on the seventh day. ²⁰ You shall purify every garment, every article of skin, all work of goats’ hair, and every article of wood.”