Arcana Coelestia #510
510. Verse 15 And Mahalalel lived sixty-five years; and he beget Jared. As has been stated, 'Mahalalel' means a fifth Church, 'Jared' a sixth.
Genesis 5:16
16
Mahalalel lived after he became the father of Jared eight hundred thirty years, and became the father of sons and daughters.