Book of Enoch (1 Enoch) 58:6

And there shall be a light that never endeth, And to a limit (lit. ‘number’) of days they shall not come, For the darkness shall first have been destroyed, [And the light established before the Lord of Spirits] And the light of uprightness established for ever before the Lord of Spirits.

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.