Book of Enoch (1 Enoch) 69:16
And these are the secrets of this oath . . . And they are strong through his oath: And the heaven was suspended before the world was created, And for ever.
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.