Mark 7:11-13

11but you [Pharisees and scribes] say, ‘If a man tells his father or mother, “Whatever I have that would help you is Corban, (that is to say, already a gift to God),” ’

12then you no longer let him do anything for his father or mother [since helping them would violate his vow of Corban];

13so you nullify the [authority of the] word of God [acting as if it did not apply] because of your tradition which you have handed down [through the elders]. And you do many things such as that.”