Isaiah 8:16
14 He will become a sanctuary, but a stone that makes a person trip and a rock that makes one stumble—to the two houses of Israel. He will become a trap and a snare to the residents of Jerusalem. 15 Many will stumble over the stone and the rock, and will fall and be seriously injured, and will be ensnared and captured.” 16 Tie up the testimony32, seal the official record of God’s instructions, and give it to my followers. 17 I will wait patiently for the Lord, who has rejected the family of Jacob; I will wait for him.
Jubilees 1:4
3 When he summoned Moses into the cloud on the seventh day, he saw the glory of the Lord like a fire blazing on the summit of the mountain. 4 Moses remained on the mountain for 40 days and 40 nights while the Lord showed him what had happened beforehand as well as what was to come. He related to him the divisions of all the times — both of the law and of the testimony. 5 He said to him: “Pay attention to all the words which I tell you on this mountain. Write them in a book so that their offspring may see that I have not abandoned them because of all the evil they have done in straying from the covenant between me and you which I am making today on Mt. Sinai for their offspring.
Notes and References
"... The expression “according to the Torah and to the Testimony,” which appears not only in the title-sentence but again in Jubilees 1:4-5; 1:26, 29 and later verses, was an important one for the overall stance of the book ... Jubilees’ reference to “the Torah and the Testimony” is based on a somewhat mysterious verse in the book of Isaiah, where God says: “Bind up the testimony, seal up the instruction (torah) with My disciples” (Isaiah 8:16). Even today, it is not clear what Isaiah was referring to, nor—more to the point—is anyone sure what the author of Jubilees meant by quoting this phrase ..."
Kugel, James L. A Walk through Jubilees: Studies in the Book of Jubilees and the World of Its Creation (pp. 2-3) Brill, 2012