Mark 7:6
4 And when they come from the marketplace, they do not eat unless they wash. They hold fast to many other traditions: the washing of cups, pots, kettles, and dining couches.) 5 The Pharisees and the experts in the law asked him, “Why do your disciples not live according to the tradition of the elders, but eat with unwashed hands?” 6 He said to them, “Isaiah prophesied correctly about you hypocrites, as it is written: “‘This people honors me with their lips, but their hearts are far from me. 7 They worship me in vain,teaching as doctrine the commandments of men.’ 8 Having no regard for the command of God, you hold fast to human tradition.”
Jude 1:14
12 These men are dangerous reefs at your love feasts, feasting without reverence, feeding only themselves. They are waterless clouds, carried along by the winds; autumn trees without fruit—twice dead, uprooted; 13 wild sea waves, spewing out the foam of their shame; wayward stars for whom the utter depths of eternal darkness have been reserved. 14 Now Enoch, the seventh in descent beginning with Adam, even prophesied of them, saying, “Look! The Lord is coming with thousands and thousands of his holy ones, 15 to execute judgment on all, and to convict every person of all their thoroughly ungodly deeds that they have committed, and of all the harsh words that ungodly sinners have spoken against him.”
Notes and References
"... The introduction (and to these ones even Enoch the seventh from Adam prophesied saying) shows that Jude considered the words of Jude 14 to be authoritative and the book of 1 Enoch they came from to be authoritative. This is shown in two ways: first, Jude used an introductory formula which resembles that of several portions of the New Testament, particularly Matthew 15:7 and Mark 7:6; second, Jude pointed to the fulfilment of a prophet's words in Jude's own time, which is also common in the New Testament writings ..."
Vanbeek, Lawrence H. The Letter of Jude's Use of 1 Enoch: The Book of the Watchers as Scripture (pp. 86-88) University of South Africa, 1997