It is just here that the Reformed Churches have a witness to give and a contribution to make of great significance to the situation of the world Church today: in picking up again the Reformed integration of the different doctrines of the faith and in thinking them into each other more thoroughly than ever before. Take, for example, the relation of the Church and Ministry to the doctrine of Christ which so concerns the Ecumenical Movement: — by its very principle of procedure the Reformed Church has refused to divorce the ministry from the articles of saving faith, so that for us the ministry is a de fide concern. The Church and Ministry themselves belong to the articles of saving faith. Credo unam sanctam ecclesiam. The doctrine of the Church as the Body of Christ is part of Christology, so that the ordering of the Church as the Body of Christ on earth cannot be divorced from the dogmatic discipline through which the mind of the Church grows up into mature conformity to the mind of Christ. That was why in Calvin’s view doctrina and disciplina belonged together and overlapped, for disciplina is such learning and discipleship in the Christian faith that it shapes and orders the whole of the Christian life.
The dogmatic and ecclesiastical forms of the Church, the inner and outer, so to speak, may well be distinguished but they cannot be separated. The Church is one Spirit and one Body with Christ the Word made flesh. The New Testament knows nothing of the Church as one Spirit except in its bodily existence in our flesh and blood which Christ assumed and in which we are united to Him through the Spirit. Because of this Biblical emphasis upon the unity of the Church in Body and Spirit, the Reformed Church sought from the very beginning to allow the dogmatic and ecclesiastical forms of the Church’s life and ministry to interpenetrate each other in obedience to the Word of God, and so to restore the doctrinal and ecclesiastical face of the Ancient Catholic Church. In our Reformed Church we will not have a doctrine of the ministry or of succession that cannot be fully integrated with the doctrines of the Person of Christ or atonement; but on the other hand, we will not have formulations of other doctrines which do not contribute to the growth or edification of the Church as the living Body of Christ, to the Church as Ecclesia semper reformanda.
This means, of course, that theology and the life of the Church are inseparable, and theological activity belongs to the strenuous work and daily living of the Church, but it also means that the Reformed Church will only have a liturgy or engage in worship which is invigorated by theology and a theology which ministers to the worship of the Church…. Liturgy and theology go hand in hand. Theology divorced from worship is not divine, but liturgy that is divorced from theology is not true service of God. Such is the integration of doctrine and discipline, of faith and order, of worship and theology so characteristic of the Calvinistic Reformation.
As I see it, that is our greatest contribution to the theology of the world Church — the carrying through into the Ecumenical situation of an integration born out of the centrality of the doctrine of Christ, and therefore the Christological criticism of the doctrines of the Church, Ministry, and Sacraments, in order that as we seek to come together in Christ the doctrine of Christ may be allowed to reshape all our churches so that we may grow up together in the fulness of Christ. Only as in the World Council of Churches we are prepared for the strenuous task of reformation together and the joint criticism of our several traditions can we come together in such a way as to be the one flock of the one Shepherd. We in this [General Council of the World Presbyterian] Alliance must therefore engage in the World Council of Churches as the Ecclesia semper reformanda, in order to let the Word of God speak to us in the context of the joint study of the Holy Scriptures, in order that we may be more and more reformed by it and in this continuous reforming be shaped and armed for the great mission of Christ, the mission of reconciliation, in which we are engaged as servants.
T.F. Torrance, “Our Witness Through Doctrine”, The Presbyterian World 22 (1953): 317-319.