Numbers 1:4-8

And with you there shall be a man of every tribe; every one head of the house of his fathers.

And these are the names of the men that shall stand with you: of the tribe of Reuben; Elizur the son of Shedeur.

Of Simeon; Shelumiel the son of Zurishaddai.

Of Judah; Nahshon the son of Amminadab.

Of Issachar; Nethaneel the son of Zuar.