These divisions of the gatekeepers, corresponding to their leaders, had assigned responsibilities, like their relatives, as they served in the Lord’s temple.

The Levites who were thirty years old and up were counted; there were 38,000 men. ¹ 

The descendants of Eleazar had more leaders than the descendants of Ithamar, so they divided them up accordingly; the descendants of Eleazar had sixteen leaders, while the descendants of Ithamar had eight. ¹