486. Verse 4 And the days of Man after he beget Seth were eight hundred years; and he beget sons and daughters.

'Days' means periods of time and states in general. 'Years' means periods of time and states in particular. 'Sons and daughters' means the truths and goods that they perceived.

1104. Verses 28-29 And Noah lived after the Flood three hundred and fifty years. And all the days of Noah were nine hundred and fifty years; and he died. These words mean the duration of the first Ancient Church, and at the same time its state.