Numbers 31:3-5

Amplified Bible, Classic Edition

³ And Moses said to the people, Arm men from among you for the war, that they may go against Midian and execute the Lord’s vengeance on Midian [for seducing Israel].^(A)

⁴ From each of the tribes of Israel you shall send 1,000 to the war.

⁵ So there were provided out of the thousands of Israel 1,000 from each tribe, 12,000 armed for war.