Mark 7:3, 5, 8, 13

(The Jews, especially the Pharisees, do not eat until they have poured water over their cupped hands, as required by their ancient traditions.

So the Pharisees and teachers of religious law asked him, “Why don’t your disciples follow our age-old tradition? They eat without first performing the hand-washing ceremony.”

For you ignore God’s law and substitute your own tradition.”

And so you cancel the word of God in order to hand down your own tradition. And this is only one example among many others.”