But the Levites after the tribe of their fathers were not numbered among them.
But the Levites ... were not numbered. They were obliged to keep a register of their own. They were consecrated to the priestly office, which in all countries has been exempted customarily, and in Israel by the express authority of God, from military service. The custody of the things devoted, to the divine service was assigned to them so exclusively that 'no stranger' - i:e., no person, not even an Israelite of any other tribe-was allowed, under penalty of death, to approach these; and hence, they encamped around the tabernacle, that there should be no manifestation of the divine displeasure among the people. Thus, the numbering of the people was subservient to the separation of the Levites from those Israelites who were fit for military service, and to the practical introduction of the law respecting the first-born, for whom the tribe of Levi became a substitute.