Arcana Coelestia #500
500. Verse 9 And Enosh lived ninety years; and he beget Kenan.
As has been stated, 'Enosh' means a third Church, even less celestial than the Church of Seth, but nevertheless one of the Most Ancient Churches. 'Kenan' means a fourth Church which came after the previous ones.
The living creatures not resting day or night
In Revelation 4:8, this signifies that what the Word continually teaches is that the Lord Jesus Christ alone is God, and is alone to be worshipped. (Apocalypse Explained 285, Apocalypse Revealed 247)