Numbers 31:17-19

21st Century King James Version

¹⁷ Now therefore kill every male among the little ones, and kill every woman who hath known a man by lying with him.

¹⁸ But all the women children, who have not known a man by lying with him, keep alive for yourselves.

¹⁹ And abide ye outside the camp seven days. Whosoever hath killed any person, and whosoever hath touched any slain, purify both yourselves and your captives on the third day and on the seventh day.