By way of introduction, I think it is worth pointing out that there are, broadly speaking, two approaches to the question as to how to, as it were, ‘do’ Church; by ‘do’ I mean how to determine sound doctrine, which practices to include and which to exclude etc.
The first theory is commonly known by its Latin title, sola Scriptura (meaning ‘Scripture alone’) and states that Scripture and only Scripture should be used in matters of faith, doctrine and practice, and in particular the New Testament. This view is adhered to by many, but not all, evangelicals. The drawback with this position is that it has produced a mass of contradictory interpretations (and thus splits and splinters within the Body of Christ) over what Scripture means on topics as diverse as the Last Days, church government and structure, the extent to which man has free will as opposed to being predestined by God to salvation or damnation, views on baptism and the Breaking of Bread, amongst many others. The NT is many things – divinely inspired, infallible, containing rich theology etc, but it is not a comprehensive, “all-singing, all-dancing” guide to how to be a Christian, nor does it claim to be thus sufficient. It does not, for example, prescribe what time Christians should meet on Sundays, how many times they should meet or what exactly should occur at such a meeting, nor does it say who should preside at Communion or perform baptisms, still less what precise words should be used at either event. In matters of church structure, the Presbyterian, the Episcopalian and the Congregationalist can all in theory argue, with some justification, that their own particular forms of church governance may be found in the pages of the NT, yet they cannot all three of them (or even two of them) be correct. Each ‘side’ in these debates tends to claim (of course!) that they have the full measure of the Holy Spirit and that therefore their interpretation is correct and the others have simply Got It Wrong, but they plainly can’t all be right and this approach does beg the very obvious question: who decides what interpretation is correct (and on what basis)?
The second school of thought recognises the above problem and admits that Scripture on its own is insufficient to deal with it; this approach therefore looks to another source for matters of doctrine and practice, not in contradiction to Scripture, but in addition to and complementary to Scripture. This other source is known as Tradition (this term comes from the Latin translation, traditio, of the Greek used in 2 Thess 2:15, paradoseiV (paradoseis), meaning ‘hand over’ or ‘hand down’). It is this method of Scripture+Tradition which I wish to explain further. In so doing, I have no desire and do not seek to justify or commend the Roman Catholic view of Tradition (and it should be pointed out that the Roman Catholics are only one out of several denominations who adopt this method of interpretation).
By way of background, I think what has to be remembered (and here I am indebted to Richard Hooker for his analysis written in the 16th century on this front) is that Scripture - and in particular the NT - is not a 'how to do church' manual, whether it be church government or liturgy etc; there are some hints, of course, but it is not comprehensive on these subjects, as we have seen above.Therefore it was left to the Church - both in the Apostolic and post-Apostolic periods - to, of necessity, work out these matters itself and it was possible for the Church to do this whilst still maintaining fidelity to Scripture. We are fortunate in that we do have a written recordto a large extent of how that happened; this record is contained within the writings variously known as ‘The Apostolic Fathers’, ‘the Patristic Writings’ or, more commonly, ‘The Early Church Fathers (ECFs)’ – men like Ignatius of Antioch, Polycarp of Smyrna, Clement of Rome, Clement of Alexandria, Justin Martyr of Rome, Irenaeus of Lyon, Hippolytus, Cyprian of Carthage etc. Their writings are not on the same level as Scripture – they are not infallible and in some instances disagree with each other – but where there is unanimity and agreement between them (known as the consensus patri) – and there is that a-plenty – then their thoughts carry an overwhelming amount of weight.