'Divisions' in the Bible
The divisions of Aaron's descendants were as follows: The sons of Aaron: Nadab, Abihu, Eleazar, and Ithamar.
The divisions of the gatekeepers: From the Korahites: Meshelemiah, son of Kore, one of the sons of Asaph.
These divisions of the gatekeepers, corresponding to their leaders, had assigned responsibilities, like their relatives, as they served in the Lord's temple.
These were the divisions of the gatekeepers who were descendants of Korah and Merari.
David assembled in Jerusalem all the officials of Israel, including the commanders of the tribes, the commanders of the army divisions that served the king, the commanders of units of a thousand and a hundred, the officials who were in charge of all the property and livestock of the king and his sons, the eunuchs, and the warriors, including the most skilled of them.
He gave him the regulations for the divisions of priests and Levites, for all the assigned responsibilities within the Lord's temple, and for all the items used in the service of the Lord's temple.
Here are the divisions of the priests and Levites who will perform all the service of God's temple. All the willing and skilled men are ready to assist you in all the work and perform their service. The officials and all the people are ready to follow your instructions."