Numbers 2:16-17

2:16 All those numbered of the camp of Reuben, according to their divisions, are 151,450. They will travel second.

The Tribe in the Center

2:17 “Then the tent of meeting with the camp of the Levites will travel in the middle of the camps. They will travel in the same order as they camped, each in his own place ¹  under his standard.

Numbers 10:14

10:14 The standard ²  of the camp of the Judahites set out first according to their companies, and over his company was Nahshon son of Amminadab.

[2:17]  ¹ tn The Hebrew expression is עַל־יָדוֹ (’al-yado, “upon his hand”). This clearly refers to a specifically designated place for each man.

[10:14]  ² sn The “standard” (דֶּגֶל, degel) was apparently some kind of a symbol put up on a pole to signify the tribal hosts. R. de Vaux thought it simply referred to a pole or a mast, but that would not distinguish tribes (Ancient Israel, 226-27).