1 Enoch 1:9
8 But with the righteous, He will establish peace. He will protect the chosen, and mercy will be upon them. They will all belong to God, prosper, and be blessed. He will aid them, and light will shine for them, and He will make peace with them. 9 Behold! He comes with tens of thousands of His holy ones to pass judgment upon all, to annihilate all the wicked, to convict every soul of all the godless deeds they have committed, and of all the harsh words that godless sinners have spoken against Him.
1 Thessalonains 3:13
11 Now may God our Father himself and our Lord Jesus direct our way to you. 12 And may the Lord cause you to increase and abound in love for one another and for all, just as we do for you, 13 so that your hearts are strengthened in holiness to be blameless before our God and Father at the coming of our Lord Jesus with all his saints.
Notes and References
"... Verse 9 is noteworthy for its use in early Christianity. Jude 14-15 quotes all but line c, citing the text as a prophecy by 'Enoch, the seventh from Adam' ... 1 Thessalonians 3:13 and Mark 8:38 speak of 'the coming of our Lord Jesus with all his holy ones' and of the Son of Man, who 'comes in the glory of his Father with the holy angels.' Perhaps belief in the parousia of the Son of Man triggered the citation of 1 Enoch 1:9 in Jude or its use in the tradition behind I Thessalonians 3:13. It is perhaps significant that 52:5-9 interprets 1 Enoch 1:37 to refer to the corning of the Anointed and Chosen One ..."
Nickelsburg, George W. E. A Commentary on the Book of 1 Enoch Chapters 1-36, 81-108 (p. 149) Fortress Press, 2001