Mark 7:11

But you say that if a man tells his father or mother, 'This money might have been at your service, but it is Korban' (that is, dedicated to God),

Matthew 23:18

You say again, 'Swear by the altar, and it means nothing; but swear by the gift upon it, and the oath is binding.'

Matthew 15:5

But you say, whoever tells his father or mother, 'This money might have been at your service but it is dedicated to God,'

(When a widow has children or grandchildren, they must learn that the first duty of religion is to their own household, and that they should make some return to those who have brought them up. In God's sight this is an acceptable thing.)

Treasury of Scripture Knowledge

Summary

Mark 7:11

But ye say, If a man shall say to his father or mother, It is Corban, that is to say, a gift, by whatsoever thou mightest be profited by me; he shall be free.