I do not know how you have come to learn this.
Are you familiar with the following? See verse 9.
Mark 7
1-13)Complete Jewish Bible (CJB)
7 The P’rushim and some of the Torah-teachers who had come from Yerushalayim gathered together with Yeshua 2 and saw that some of his talmidim ate with ritually unclean hands, that is, without doing n’tilat-yadayim. 3 (For the P’rushim, and indeed all the Judeans, holding fast to the Tradition of the Elders, do not eat unless they have given their hands a ceremonial washing. 4 Also, when they come from the marketplace they do not eat unless they have rinsed their hands up to the wrist; and they adhere to many other traditions, such as washing cups, pots and bronze vessels.)
5 The P’rushim and the Torah-teachers asked him, “Why don’t your talmidim live in accordance with the Tradition of the Elders, but instead eat with ritually unclean hands?” 6 Yeshua answered them, “Yesha‘yahu was right when he prophesied about you hypocrites — as it is written,
‘These people honor me with their lips,
but their hearts are far away from me.
7 Their worship of me is useless,
because they teach man-made rules as if they were doctrines.’[a]
8 “You depart from God’s command and hold onto human tradition. 9 Indeed,” he said to them, “you have made a fine art of departing from God’s command in order to keep your tradition! 10 For Moshe said, ‘Honor your father and your mother,’ and ‘Anyone who curses his father or mother must be put to death.’[c] 11 But you say, ‘If someone says to his father or mother, “I have promised as a korban” ’ ” (that is, as a gift to God) “ ‘ “what I might have used to help you,” ’ 12 then you no longer let him do anything for his father or mother. 13 Thus, with your tradition which you had handed down to you, you nullify the Word of God! And you do other things like this.”
