Divrey Hayamim Bais 31:16

16 This was besides those males who were recorded in the genealogical records, from three years old and upward, even unto every one that entereth into the Beis Hashem for its daily duty for their avodas service in their mishmerot (watches, shifts) according to their machlekot,

Divrey Hayamim Bais 31:16 Meaning and Commentary

2 Chronicles 31:16

Beside their genealogy of males, from three years old and
upwards
Their office was not only to give to the priests, but to those of their males in their genealogy, who were three years old and upwards; for under that age, according to Kimchi, they were not fit to come into the temple; nor have they knowledge to keep what is put into their hands; nor fit to handle offerings, lest they should defile them; but at that age they might be taught how to hold them, and be used to it; but as for females, he says, they were not admitted at any age:

even unto everyone that entereth into the house of the Lord;
of the said age, and in the genealogy and register of the priests:

his daily portion for their service in their charges, according to
their courses;
food for every day, in consideration of their service in their several wards, according to their courses in turn.

Divrey Hayamim Bais 31:16 In-Context

14 And Kore ben Imnah the Levi, the sho’er (gatekeeper) at the east, was over the nidvot HaElohim (freewill offerings of G-d), to distribute the terumat Hashem, and the kadshei hakadashim.

15 And next to him be’emunah were Eden, and Minyamin, and Yeshua, and Shemayahu, Amaryahu, and Shechanyahu, in the towns of the Kohanim, to give to their achim by machlekot, to the gadol as well as the katan.

16 This was besides those males who were recorded in the genealogical records, from three years old and upward, even unto every one that entereth into the Beis Hashem for its daily duty for their avodas service in their mishmerot (watches, shifts) according to their machlekot,

17 Both to the genealogy of the Kohanim by the Bais Avoteihem, and the Levi’im from twenty years old and upward, in their mishmerot by their machlekot (divisions);

18 And to the genealogy of all their little ones, their nashim, and their banim, and their banot, throughout kol Kahal, for be’emunah (in faithfulness) they set themselves apart as kodesh in kodesh (holiness);