What does Exodus 6:23 mean?

Aaron's son Eleazar married one of Putiel's daughters, and they had a son named Phinehas. These are the heads of the families among the Levites, grouped by their clans. Exodus 6:23 - Modern Text Bible

(This verse highlights Eleazar's marriage and his son Phinehas, who will later play a key role. The verse wraps up the main family leaders among the Levites.)