Numbers 1:5-7

Amplified Bible

⁵ These then are the names of the men who shall stand with you: from [the tribe of] Reuben, Elizur the son of Shedeur; ⁶ from [the tribe of] Simeon, Shelumiel the son of Zurishaddai; ⁷ from [the tribe of] Judah, Nahshon the son of Amminadab;