Cross reference
Matthew 15:3
3 He answered them, "Why do you also disobey the commandment of God because of your tradition?
Matthew 7:3-5
3 Why do you see the speck that is in your brother's eye, but don't consider the beam that is in your own eye?
4 Or how will you tell your brother, 'Let me remove the speck from your eye;' and behold, the beam is in your own eye?
5 You hypocrite! First remove the beam out of your own eye, and then you can see clearly to remove the speck out of your brother's eye.
Mark 7:6-8
6 He answered them, "Well did Isaiah prophesy of you hypocrites, as it is written, 'This people honors me with their lips, But their heart is far from me.
7 But in vain do they worship me, Teaching as doctrines the commandments of men.'
8 "For you set aside the commandment of God, and hold tightly to the tradition of men--the washing of pitchers and cups, and you do many other such things."
Mark 7:13
13 making void the word of God by your tradition, which you have handed down. You do many things like this."
Colossians 2:8
8 Be careful that you don't let anyone rob you through his philosophy and vain deceit, after the tradition of men, after the elements of the world, and not after Christ.
Colossians 2:23
23 Which things indeed appear like wisdom in self-imposed worship, and humility, and severity to the body; but aren't of any value against the indulgence of the flesh.
Titus 1:14
14 not paying attention to Jewish fables and commandments of men who turn away from the truth.