“They fought against Midian, as Yahweh commanded Moses. They killed every male.”
Numbers 31:7 (WEB)
Context Reading
5So there were delivered, out of the thousands of Israel, a thousand from every tribe, twelve thousand armed for war. 6Moses sent them, one thousand of every tribe, to the war with Phinehas the son of Eleazar the priest, to the war, with the vessels of the sanctuary and the trumpets for the alarm in his hand. 7They fought against Midian, as Yahweh commanded Moses. They killed every male. 8They killed the kings of Midian with the rest of their slain: Evi, Rekem, Zur, Hur, and Reba, the five kings of Midian. They also killed Balaam the son of Beor with the sword. 9The children of Israel took the women of Midian captive with their little ones; and all their livestock, all their flocks, and all their goods, they took as plunder.