from thirty years and upward to fifty years old, you shall number them, everyone who enters the service to do the work of the Tent of Meeting (tabernacle).
This is what they are assigned to carry [on the march], according to all their service in the Tent of Meeting: the boards [for the framework] of the tabernacle and its bars and its pillars and its sockets or bases,
No soldier in active service gets entangled in the [ordinary business] affairs of civilian life; [he avoids them] so that he may please the one who enlisted him to serve.