"Take vengeance on the Midianites1 for the Israelites. After that, you will be gathered to your people.2"
References for Numbers 31:2
So Moses said to the people, "Arm some of your men to go to war against the Midianites and to carry out the LORD's vengeance3 on them.
References for Numbers 31:3
Send into battle a thousand men from each of the tribes of Israel."
So twelve thousand men armed for battle,4 a thousand from each tribe, were supplied from the clans of Israel.
References for Numbers 31:5
Moses sent them into battle,5 a thousand from each tribe, along with Phinehas6 son of Eleazar, the priest, who took with him articles from the sanctuary7 and the trumpets8 for signaling.
References for Numbers 31:6