Charles Ellicott Commentary Exodus 6:25

"And Eleazar Aaron`s son took him one of the daughters of Putiel to wife; and she bare him Phinehas. These are the heads of the fathers` [houses] of the Levites according to their families." — Exodus 6:25 (ASV)

According to their families.—The genealogy proper ends here. But the author appends to it an emphatic statement that the Moses and Aaron mentioned in it (Exodus 6:20; Exodus 6:23) are the very Moses and Aaron appointed by God to lead the Israelites out of Egypt—the very Moses and Aaron who delivered God’s message to Pharaoh (Exodus 6:26–27).