Custom See also Traditions of Men the customs of the people are vain, Jer. 10:3. Matthew, sitting at the receipt of custom, Matt. 9:9 (Mark 2:14; Luke 5:27). Jesus … shall change the customs which Moses delivered us, Acts 6:14. teach customs, which are not lawful for us, Acts 16:21. neither to walk after the customs, Acts 21:21.