This was the longest time that any man lived. But it is observable that neither his nor any of the patriarch's lives reached to a thousand years, which number hath some shadow of perfection. He died but a little before the flood came, being taken away from the evil to come.
Related Commentaries of Genesis 5:27
Genesis 5:27
27 And all the days of Methuselah were nine hundred sixty and nine years: and he died.