This verse lists the descendants of Eleazar, who was appointed as a leader of the Levites by King David. Eleazar's descendants were divided into sixteen groups to serve in the temple, each with specific duties and responsibilities. This organization ensured that the priests and Levites carried out their roles effectively and orderly in the worship of God. The detailed record highlights the importance of structure and order in the service of the Lord, emphasizing the significance of each individual's contribution to the collective worship of God.