Mark 7:3

7:3 (For the Pharisees and all the Jews do not eat unless they perform a ritual washing, holding fast to the tradition of the elders.

Mark 7:5

7:5 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?”

Mark 7:13

7:13 Thus you nullify the word of God by your tradition that you have handed down. And you do many things like this.”