Book of Enoch (1 Enoch) 47:2
In those days the holy ones who dwell above in the heavens Shall unite with one voice And supplicate and pray [and praise, And give thanks and bless the name of the Lord of Spirits] On behalf of the blood of the righteous which has been shed, And that the prayer of the righteous may not be in vain before the Lord of Spirits, That judgement may be done unto them, And that they may not have to suffer 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.