Deuteronomy 4:2
1 Now, Israel, pay attention to the statutes and ordinances I am about to teach you, so that you might live and go on to enter and take possession of the land that the Lord, the God of your ancestors, is giving you. 2 Do not add a thing to what I command you nor subtract from it, so that you may keep the commandments of the Lord your God that I am delivering to you. 3 You have witnessed what the Lord did at Baal Peor, how he eradicated from your midst everyone who followed Baal Peor. 4 But you who remained faithful to the Lord your God are still alive to this very day, every one of you.
1 Enoch 104:9
8 And now I show you that light and darkness, day and night, see all your sins. 9 Don't be godless in your hearts, and do not lie nor alter the words of uprightness, nor charge with lying the words of the Holy Great One, nor take account of your idols; for all your lying and all your godlessness do not result in righteousness but in great sin. 10 And now I know this mystery, that sinners will alter and pervert the words of righteousness in many ways, and will speak wicked words, and lie, and practice great deceits, and write books concerning their words.
Notes and References
"... On Enoch's words as testimony, compare 91:3. The character of the words of those who follow him as testimony is indicated in 81:6 and 105:1. Enoch expresses the wish, then, that his works will be copied accurately ('in truth'), that is, without deletions and changes. A similar sentiment is expressed in Deuteronomy 4:2 and 12:32, and at the end of the book of Revelation (22:18-19) ..."
Nickelsburg, George W. E. A Commentary on the Book of 1 Enoch Chapters 1-36, 81-108 (p. 534) Fortress Press, 2001