Numbers 2:15-17

Amplified Bible

¹⁵ and his army as numbered totaled 45,650. ¹⁶ The total of the numbered men [in the three tribes on the south side] in the camp of Reuben was 151,450, by their armies. They shall move out second [on the march].

¹⁷ “Then the Tent of Meeting (tabernacle) shall move out with the camp of the Levites in the middle of the [other] camps; just as they camp so shall they move out, every man in his place by their standards.