1 Chronicles 23:3
Levites <03881> [the Levites.]
thirty .......... 38,000 <08083 07970> [thirty and eight.]
1 Chronicles 23:24
descendants ... Levi .............................. old <03878 01121> [the sons of Levi.]
families ..................... temple <01004> [after the house.]
individually <01538> [by their polls.]
descendants ................................ old <01121> [from the age.]
At first David appointed the Levites to serve from thirty years old and upwards; but considering, probably, that the temple which was about to be built, with its courts, chambers, etc., would require a more numerous ministry, he fixed this period, by this subsequent regulation, at twenty years and upwards. In the time of Moses, the age was from thirty years to fifty: here this latter period is not mentioned, probably because the service was not so laborious now; for the ark being fixed, they had no longer any burdens to carry; and therefore even an old man might continue to serve. See the Note on Nu 8:24.
twenty <06242> [twenty.]