Numbers 31:18-20

New International Version

¹⁸ but save for yourselves every girl who has never slept with a man.

¹⁹ “Anyone who has killed someone or touched someone who was killed^(A) must stay outside the camp seven days.^(B) On the third and seventh days you must purify yourselves^(C) and your captives. ²⁰ Purify every garment^(D) as well as everything made of leather, goat hair or wood.^(E)”