2 Chronicles 31:16

16 as they entered The Temple of God each day to do their assigned work (their work was all organized by divisions).

2 Chronicles 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.

2 Chronicles 31:16 In-Context

14 Kore son of Imnah the Levite, security guard of the East Gate, was in charge of the Freewill-Offerings of God and responsible for distributing the offerings and sacred gifts.

15 Faithful support out in the priestly cities was provided by Eden, Miniamin, Jeshua, Shemaiah, Amariah, and Shecaniah. They were even-handed in their distributions to their coworkers (all males thirty years and older) in each of their respective divisions

16 as they entered The Temple of God each day to do their assigned work (their work was all organized by divisions).

17 The divisions comprised officially registered priests by family and Levites twenty years and older by job description.

18 The official family tree included everyone in the entire congregation - their small children, wives, sons, and daughters. The ardent dedication they showed in bringing themselves and their gifts to worship was total - no one was left out.