And Moses said unto them, Have ye saved all the women alive? ... Now therefore kill every male among the little ones, and kill every woman that hath known man by lying with him. But all the women children, that have not known a man by lying with him, keep alive for yourselves. 31:15
Trivia: God stopped killing people for "committing whoredom with the daughters of Moab" because "his wrath was turned away" by a man who thrust a javelin through a man of Israel and a daughter of Moab.
