Tradition

Tertulain said: "Our Lord called himself the 'truth' not 'custom' [On The Veiling of Virgins, ch. 1]. Similarly, Cyprian cites against the tradition (to which the bishop of Rome appealed) the texts Isaiah 29:13; Matthew 15:9; 1 Timothy 6:3-5; and stated: "Custom without truth is the antiquity of error." [Epistle 74]".

Bavinck, RD, vol 1, p483