This verse lists the descendants of Aaron, the first high priest of Israel, tracing his lineage through Eleazar and Phinehas. It serves as a genealogical record to establish the priestly lineage and the continuity of the priesthood. By documenting the family line from generation to generation, it highlights the importance of heritage and the faithfulness of God in preserving the priestly office. This verse emphasizes the significance of Aaron's descendants in carrying out the duties of the priesthood and maintaining the worship practices of the Israelites.