Exodus 24:8
7 He took the Book of the Covenant and read it aloud to the people, and they said, “We are willing to do and obey all that the Lord has spoken.” 8 So Moses took the blood and splashed it on the people and said, “This is the blood of the covenant that the Lord has made with you in accordance with all these words.” 9 Moses and Aaron, Nadab and Abihu, and the seventy elders of Israel went up,
Jubilees 6:11
10 Noah and his sons swore an oath not to consume any blood that was in any animate being. During this month he made a covenant before the Lord God forever throughout all the history of the earth. 11 For this reason he told you, too, to make a covenant — accompanied by an oath — with the Israelites during this month on the mountain and to sprinkle blood on them because of all the words of the covenant which the Lord was making with them for all times.
Notes and References
"... Here he alludes to a rather mysterious element in the biblical account of the Sinai covenant: in an otherwise unparalleled gesture, Moses is said there to have sprinkled blood on the people at the conclusion of that covenant (Exodus 24:8). The reason Moses did so, according to the Interpolator, was as a reminder of the oath that Noah and his sons had sworn centuries before: “We won’t ever eat blood!” Of course, Exodus did not say anything of the kind, but that hardly mattered. In presenting things in this fashion, the Interpolator suggested that the blood prohibition was absolutely crucial (which, to him, it was), and further implied that the covenants with Noah and Moses were not only linked by date (the third month) but also by content ..."
Kugel, James L. A Walk through Jubilees: Studies in the Book of Jubilees and the World of Its Creation (pp. 60-61) Brill, 2012