Book of Enoch (1 Enoch) 71:5
And he translated my spirit into the heaven of heavens, And I saw there as it were a structure built of crystals, And between those crystals tongues of living fire.
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.