King James Version
These were the sons of Levi after the house of their fathers; even the chief of the fathers, as they were counted by number of names by their polls, that did the work for the service of the house of the LORD, from the age of twenty years and upward.English Standard Version
These were the sons of Levi by their fathers' houses, the heads of fathers' houses as they were listed according to the number of the names of the individuals from twenty years old and upward who were to do the work for the service of the house of the LORD.Catholic Public Domain Version
These are the sons of Levi, in their kindred and families, leaders in turns, and the number of each of the heads who were doing the works of the ministry of the house of the Lord, from twenty years of age and upward