Numbers 2:3

And they that encamp first toward the east [shall be] the order of the camp of Juda with their host, and the prince of the sons of Juda, Naasson the son of Aminadab.

And on the east side toward the rising of the sun shall they of the standard of the camp of Judah pitch throughout their armies: and Nahshon the son of Amminadab shall be captain of the children of Judah.

“Those who encamp on the east side toward the sunrise shall be of the standard of the camp of Judah, according to their divisions. The prince of the children of Judah shall be Nahshon the son of Amminadab.