Exodus 6:16

The years of the life of Levi - "Bishop Patrick observes that Levi is thought to have lived the longest of all Jacob's sons, none of whose ages are recorded in Scripture but his and Joseph's, whom Levi survived twenty-seven years, though he was much the elder brother. By the common computation this would be twenty-three years: by Kennicott's computation at the end of Genesis 31. (See Clarke's note at Genesis 31:55) Levi's birth is placed twenty-four years before that of Joseph; his death, therefore, would be only three years later. But this is not the only difficulty in ancient chronologies. Kohath, the second son of Levi, according to Archbishop Usher was thirty years old when Jacob came into Egypt, and lived there one hundred and three years. He attained to nearly the same age with Levi, to one hundred and thirty-three years; and his son Amram, the father of Moses, lived to the same age with Levi. We may observe here how the Divine promise, Genesis 15:16, of delivering the Israelites out of Egypt in the fourth generation was verified; for Moses was the son of Amram, the son of Kohath, the son of Levi, the son of Jacob." - Dodd.

6:16 The age of Levi, Kohath, and Amram, the father, grandfather, and great grandfather of Moses is here recorded; and they all lived to a great age, Levi to one hundred thirty seven, Kohath to one hundred thirty three, and Amram to one hundred thirty seven: Moses himself came much short of them, and fixed seventy or eighty for the ordinary stretch of human life. Psa 90:10. For now Israel was multiplied, and become a great nation, and divine revelation was by the hand of Moses committed to writing, and no longer trusted to tradition; the two great reasons for the long lives of the patriarchs were ceased, and therefore from henceforward fewer years must serve men.