Discovery BoxNumbers 8:24-25 
Context8:24 “This is what pertains to the Levites: 1 At the age of twenty-five years 2 and upward one may begin to join the company 3 in the work of the tent of meeting, 8:25 and at the age of fifty years they must retire from performing the work and may no longer work.
1 tn The Hebrew text has “this [is that] which [pertains] to the Levites.” “This is what concerns the Levites, meaning, the following rulings are for them.
2 tc The age of twenty-five indicated in v. 24 should be compared with the age of thirty indicated in Num 4:3,23,30. In order to harmonize the numbers given in chapter 4 with the number given in Num 8:24 the LXX (and perhaps its Hebrew Vorlage) has thirty in all of these references. See further G. J. Wenham, Numbers (TOTC 4), 97-98.
3 tn The infinitive is לִצְבֹא (litsvo’), related to the word for “host, army, company,” and so “to serve as a company.” The meaning is strengthened by the cognate accusative following it.
