Numbers 31:13-18

13And Moses, Eleazar the priest, and all the leaders of the congregation went out to meet them outside the camp.

14But Moses was angry with the officers of the army, the commanders of thousands and the commanders of hundreds, who had come from service in the war.

15And Moses said to them, “Have you 1spared 2all the women?

163Behold, they caused the sons of Israel, through the 4counsel of 5Balaam, to be unfaithful to the Lord in the matter of Peor, so that the plague took place among the congregation of the Lord!

176Now therefore, kill every male among the little ones, and kill every woman who has known a man 7intimately.

18However, all the 8girls who have not known a 9man intimately, keep alive for yourselves.