Scripture and Tradition in the Catholic Church In the first years of the seventeenth century, my fellow Scot, John Colville (1542-1605) attempted to somewhat colourfully elucidate and elaborate the Catholic understanding of the relationship between Scripture and the Church: “It cannot be denied that the Church is to Scripture as the pilot to the rudder, the mason to the line, the magistrate to the laws…..Even so, the rudder and compass, the line and square of Holy Scripture and laws contained therein, except they have the Church to be their steerman, mason and judge, they of themselves ever pacify parties contending in faith and religion, more nor the compass alone guide the ship, or the line build the house” [1] . Underlying Colville’s rather creative use of analogy was a profound appreciation of the mutual interdependence and co-penetration of Scripture and the Church. For Colvile, Scripture and Tradition, far from being two sections of the deposit of revelation, constitute one singl