Book of Enoch (1 Enoch) 99:3
In those days make ready, ye righteous, to raise your prayers as a memorial, And place them as a testimony before the angels, That they may place the sin of the sinners for a memorial before the Most High.
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.