Book of Enoch (1 Enoch) 22:9
And he answered me and said unto me: ‘These three have been made that the spirits of the dead might be separated. And such a division has been made 〈for〉 the spirits of the righteous, in which there is the bright spring of water.
Background and history of Book of Enoch (1 Enoch), and issues with this book.
R. H. Charles, The Book of Enoch (London: SPCK, 1917), public domain. The verse text is the English Wikisource transcription of that translation. Charles’s editorial signs are kept. He rearranges some verses in chapters 5, 39, 90, 91, and 106, so those chapters are not a straight 1, 2, 3 sequence.