Arcana Coelestia # 486
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.
Arcana Coelestia # 8150
8150. 'And there were tertiary commanders over them all' means having been arranged into order under general headings. This is clear from the meaning of 'tertiary commanders' as general headings under which come particular aspects. The reason why 'tertiary commanders' has this meaning is that 'three', which lies behind the term 'tertiary', means something completed and entire, 2788, 4495, 7715, and commanders' means the things that rank first. And these together with the particular aspects constitute general wholes, for every single component of a series is arranged into order under a general heading. This arrangement into order under general headings enables individual aspects to act in unison, have form, and at the same time possess a particular quality. Regarding general headings, that they have particular aspects under them, and specific details under these, see 920, 2384, 3739, 4325 (end), 4329, 4345, 4383, 5208, 5339, 6115, 6146.