'The spirit of God,' as in Genesis 1:2, signifies the divine mercy of the Lord.

'The spirit of God' denotes good from an interior level, so from the divine. The spirit of God is what proceeds from the divine, so from good itself, because the divine is good itself, and what proceeds from it is truth within which is good. This is what 'the spirit of God' signifies in the Word, because the spirit itself does not proceed, but the truth itself within which is good, the spirit being the instrument which produces it.

(参考: Arcana Coelestia 19; Divine Love and Wisdom 100)

883. 'The dove returned to him at evening time' means that these started to show themselves a little; and 'evening time' is similar to pre-morning twilight. This in like manner becomes clear from that has been stated already at verse 8, and also from the fact that here it is called 'evening time'. Concerning 'evening', see what has been stated in Genesis 1, where six times the statement is made 'there was evening and there was morning'. 'Evening' is a word that has to do with regeneration and indeed with that state when a person is still in near-darkness, or when there is still only a tiny quantity of light showing itself to him. Morning itself is described in verse 13 below by 'he removed the roof from the ark and saw out'. Because 'evening' meant the pre-morning twilight, mention of the evening is made so many times in the Jewish Church. This also is why sabbaths and festivals began from evening onwards, and why Aaron was commanded to light the sacred lamp 'in the evening', Exodus 27:21.