Arcana Coelestia #614
614. 'Walking with God' means the doctrine of faith. This may be seen in what has been stated already about Enoch at Chapter 5:22, 24, who also is said to have 'walked with God'. In that context it meant the doctrine of faith that was preserved for the use of descendants; and as these are the descendants for whose use it was preserved the subject is now taken up once again.
Genesis 6:4
4
There were giants in the earth in those days; and also after that, when the sons of God came in unto the daughters of men, and they bare children to them, the same became mighty men which were of old, men of renown.
