This article first appeared in the May 2017 edition of Ad Fontes (Issue 1.9).
Introduction
The last century has seen quite a bit of discussion amongst Protestants concerning the orthodoxy of Natural Theology. Some recent thinkers, such as Karl Barth and Cornelius Van Til, have, either explicitly or implicitly, denied natural theology.[1] In what follows we wish to ask a very simple, yet very important, question: “What place, if any, does natural theology have in orthodox Protestant theology?” To answer this question, we must first explain what we mean by “natural theology” and by “orthodoxy.” Once we have explained these notions, we will attempt to answer the proposed question. Let us begin with the question of orthodoxy.
Orthodoxy: Definitions and Nuances
The word orthodoxy comes from two Greek words which signify, respectively, “right” and “opinion or teaching”. As such, the general notion of orthodoxy can be summarized as follows: A thinker is considered orthodox in any one domain of thought when he possesses right or true beliefs about the object studied in that domain of thought. Concerning theological orthodoxy, Richard Muller says that, “Orthodoxy consists in the faithful acceptance both of the fundamental articles and of those other, secondary doctrines, that sustain and serve to secure the right understanding of the fundamental doctrines.”[2] Thus, a Christian thinker would be considered orthodox when he accepts as true those doctrines which are both true, and are taught by true Christianity. When discussing orthodoxy, we also need to keep in mind that it is possible to be partially orthodox. A person would be partially orthodox when he adheres to a portion (greater or smaller) of those doctrines which are necessary for true Christian belief, but deny a portion of those same doctrines. The question we must now ask is, “how can a Protestant determine what is, and what is not, orthodox belief?”
Standards of Protestant Orthodoxy
There are, we propose, four ways in which Protestants can discern orthodoxy.[3] They are: (1) Via the all-but-undebatable interpretation of some biblical text(s), such that other possible interpretations are either demonstrably false or overly strained, and a clear doctrine can be drawn out of the passage(s) in question; (2) Via the all-but-unanimous teaching by the great theologians about a doctrine, whether this be throughout the entire history of the church or just since the Reformation; (3) Via confessions, catechisms, and creeds, which purport to represent the doctrinal claims which are proposed as orthodox for certain denominations of Protestantism; and (4) Via all-but-unambiguous interpretation of some natural truths, such that other possible interpretations are either demonstrably false, overly strained, incoherent, or otherwise fallacious, and such that a true conclusion can be drawn out of the observations in question. We will use these standards to test the orthodoxy of natural theology.
Testing the Orthodoxy of Natural Theology
Natural theology, broadly defined, is that part of philosophy which explores that which man can know about God from nature (his existence, divine nature, etc.), via man’s divinely bestowed faculty of reason, unaided by any divinely inspired written revelation from any religion, and without presupposing the truth of any one religion. So, can natural theology pass the test of orthodoxy?
When we consult the Scriptures, we find several verses that have, throughout the history of the church, been understood as saying that all men (regenerate and unregenerate) can know something of God by their observations of the universe. These verses include, but are certainly not limited to, Psalm 19:1-5; Acts 14:16-17 and 17:26-27; and Romans 1:19-20, and 2:14-15. John Calvin, commenting on Romans 1:19-20, says “When he says that God made it [His own existence, power and eternal nature] manifest to them: the meaning is, that mankind was created to this end, that he be the contemplator of this excellent work, the world: that his eyes were given to him in order that seeing such a beautiful image, he would be brought to know the author himself that made it.”[4] As such, natural theology passes the first test of orthodoxy—close to undebatable biblical interpretation.
When we consult the teachings of the greatest church theologians throughout the centuries, we discover that they have almost unanimously affirmed the possibility of natural theology.[5] Indeed, so many important Christian theologians affirm natural theology that it would be impossible to name them all in this brief article, though we might mention Tertullian,[6] Gregory of Nyssa,[7] Gregory of Nazianzus,[8] Thomas Aquinas,[9] John Calvin,[10] Francis Turretin,[11] and J. Gresham Machen.[12] Natural theology, therefore, passes the second test—nearly unanimous agreement amongst church theologians.[13]
When we turn to the third test of orthodoxy—authoritative confessions and creeds—we discover that several the most important Protestant confessions also affirm that natural theology is a necessary part of orthodox Protestant theology. Examples include: (1) the French Confession of Faith, apparently written by John Calvin himself and approved by Theodore Beza;[14] and (2) the well-known and widely accepted Westminster Confession.[15] The Westminster Confession states, for example, that “Although the Light of Nature, and the works of Creation and Providence do so far manifest the Goodness, Wisdom, and Power of God, as to leave men unexcusable; yet are they not sufficient to give that knowledge of God and of his Will, which is necessary unto salvation.”[16] In case there is any doubt about the meaning of these confessions, the Westminster Greater Catechism,[17] and many commentaries on these documents, confirm this point.[18]
Turning to the fourth and final test of orthodoxy—close to undebatable interpretation of the created universe—we discover that some of the most important divine attributes (such as simplicity, immutability, and impassibility) are only known through natural theology, and can only be affirmed through the interaction of natural and biblical theology. In rejecting natural theology, we must also at the same time reject that which allows us to affirm these divine attributes. Reject one of these attributes, and we no longer have the God of traditional Christianity. As such, we might say, our rational observations of the created universe are necessary for orthodoxy – in relation, at least, to theology proper.
Conclusion
Our investigation shows that by the application of all four Protestant standards, natural theology is a necessary element for complete orthodoxy. Though affirming the possibility of natural theology may not be necessary for salvation, it is necessary in order to be considered fully orthodoxy. We have seen that the Bible clearly teaches this doctrine, that the greatest theologians of the history of the church (both pre- and post-reformation) clearly teach this doctrine, that the most important creeds and confessions of the Protestant church clearly teach this doctrine, and that the traditional doctrine of God requires it. It follows, then, that to be considered fully orthodoxy, according to the Protestant standards for measuring orthodoxy, one must affirm natural theology.
Dr. David Haines (PhD, Université Laval), is Assistant Professor of Philosophy and Theology at Bethlehem College & Seminary, Associate Professor of Philosophy and Religion at VIU, a Visiting Fellow at Davenant Hall, and a lecturer in philosophy at Université de Sherbrooke. He has previously co-authored Natural Law: A Brief Introduction and Biblical Defense and edited Without Excuse: Scripture, Reason, and Presuppositional Apologetics, both with The Davenant Press.