Book of Enoch (1 Enoch) 81:7
Let thy heart be strong, For the good shall announce righteousness to the good; The righteous with the righteous shall rejoice, And shall offer congratulation to one another.
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.