Numbers 31:13-16

13Moses and 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 of hundreds, who served in the war.

15And Moses said to them, “Have you let all the women live?

16Look, these [are the women who] caused the Israelites, by the counsel of Balaam, to trespass against the Lord in the matter of Peor, and so a plague came among the congregation of the Lord.