Arcana Coelestia #860
860. From these considerations it also becomes clear that all regeneration advances from evening to morning, as is mentioned six times in Genesis 1 where the regeneration of man is the subject. Here the evening is described in verses 2-3, the morning in verses 4-5. The present verse describes the first ray of light or the morning of this state as 'the tops of the mountains appearing'.
Arcana Coelestia #3785
3785. 'He said, Behold, it is still high day' means that the state was now in progress. This is clear from the meaning of 'day' as state, dealt with in 23, 487, 488, 493, 893, 2788, 3462, while the meaning of the words 'Behold, it is still high [day]' as in progress is evident from the train of thought.