Book of Enoch (1 Enoch) 93:5
And after that in the third week at its close A man shall be elected as the plant of righteous judgement, And his posterity shall become the plant of righteousness for evermore.
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.