Book of Enoch (1 Enoch) 100:5
And over all the righteous and holy He will appoint guardians from amongst the holy angels To guard them as the apple of an eye, Until He makes an end of all wickedness and all sin, And though the righteous sleep a long sleep, they have nought to fear.
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.