Numbers 31:6 in the World English Bible
Moses 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.
Context
5 So there were delivered out of the thousands of Israel, a thousand of every tribe, twelve thousand armed for war.
6 And Moses sent them to the war, a thousand of every tribe, them and Phinehas the son of Eleazar the priest, to the war, with the holy instruments, and the trumpets to blow in his hand.
7 And they warred against the Midianites, as the LORD commanded Moses; and they slew all the males.