Numbers 31:18-20

New International Version - UK

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 must stay outside the camp seven days. On the third and seventh days you must purify yourselves and your captives. ²⁰ Purify every garment as well as everything made of leather, goat hair or wood.’