Divrey Hayamim Alef 23:27

27 According to the last instructions of Dovid the Bnei Levi were numbered from those twenty shanah and above;

Divrey Hayamim Alef 23:27 Meaning and Commentary

1 Chronicles 23:27

For by the last words of David
Or therefore by the last orders he gave before his death:

the Levites were numbered from twenty years old and above;
as able and sufficient to do the work of their office.

Divrey Hayamim Alef 23:27 In-Context

25 For Dovid said, Hashem Elohei Yisroel hath given rest unto His people, that they may dwell in Yerushalayim ad l’olam;

26 And also unto the Levi’im; they shall no more carry the Mishkan, nor any kelim (vessels) of it for the avodah thereof.

27 According to the last instructions of Dovid the Bnei Levi were numbered from those twenty shanah and above;

28 Because their ma’amad (position) was to wait on the Bnei Aharon for the avodas Beis Hashem, in the khatzerot, and in the rooms, and in the tahorat (cleansing) of kol kodesh, and the work of the avodas Beis HaElohim;

29 Both for the Lechem HaMa’arechet (showbread), and for the solet (flour) for minchah, and for the cakes of matzot, and for that which is baked in the pan, and for that which is scalded, and for all manner of measure and size;