Numbers 31:3 ASV

¹  And Jehovah spake unto Moses, saying,

²  Avenge the children of Israel of the Midianites: afterward shalt thou be gathered unto thy people.

³  And Moses spake unto the people, saying, Arm ye men from among you for the war, that they may go against Midian, to execute Jehovah's vengeance on Midian.

⁴  Of every tribe a thousand, throughout all the tribes of Israel, shall ye send to the war.

⁵  So there were delivered, out of the thousands of Israel, a thousand of every tribe, twelve thousand armed for war.