Matthew 15:5-6
15:5 But you say, ‘If someone tells his father or mother, “Whatever help you would have received from me is given to God,”
15:6 he does not need to honor his father.’ You have nullified the word of God on account of your tradition.
Mark 7:10-13
7:10 For Moses said, ‘Honor your father and your mother,’ and, ‘Whoever insults his father or mother must be put to death.’
7:11 But you say that if anyone tells his father or mother, ‘Whatever help you would have received from me is corban’ (that is, a gift for God),
7:12 then you no longer permit him to do anything for his father or mother.
7:13 Thus you nullify the word of God by your tradition that you have handed down. And you do many things like this.”