In sum, to affirm something is or is not a gospel issue is not a transparent expression. It is likely to be clearest among those who share a common confession as to what the gospel is. It is useful only when it means something more stringent than that X can be tied in some way to the gospel: one must show that without this X the gospel itself is seriously threatened. And it is always wise to recognize that some topics are hugely important on grounds other than gospel issues and that our choice of topics is generated in part by our perception of the threats and errors of our own age.
Today it is very common to hear that such-and-such a topic is “a gospel issue.” We must hold to the eternal generation of the Son: it is a gospel issue. We must defend inerrancy: it is a gospel issue. We must espouse complementarianism: it is a gospel issue. We must be sabbatarians: it is a gospel issue. We must hold to a specific eschatological vision: it is a gospel issue. We must hold to substitutionary penal atonement: it is a gospel issue. Alternatively, the weight of some doctrines may be diminished by our pronouncements if we declare that something or other is not a gospel issue. We then hear statements like these: Inerrancy may be important, but it is not a gospel issue. I disagree with your understanding of the role of the nation of Israel in the history of redemption, but that’s all right: it’s not a gospel issue. Why do you make such a fuss over complementarianism? After all, it’s not a gospel issue.
Not only do we not agree on what things are gospel issues, I suspect that sometimes we do not agree on what “gospel issue”means. The following reflections provide the merest introduction to some of the factors that strike me as relevant:
(1) The statement “X is a gospel issue” is simultaneously (a) a truth claim and (b) a polemical assertion attempting to establish relative importance. The latter clearly depends on the former. Both parts bear thinking about. The statement is a truth claim in that it asserts that something either is true about X, namely, that it is “a gospel issue.” The claim is either valid (if X really is a gospel issue) or invalid (if X is really not a gospel issue). But as used by most people, “X is a gospel issue” is more than a truth claim. If the truth claim is valid, the statement implicitly asserts that X is a more important topic than others that are not gospel issues: it is designed to establish the importance of X relative to other topics that are not understood to be gospel issues. What is presupposed in the statement, of course, is that the gospel has a very high level of importance, perhaps supreme importance, such that if X is a gospel issue, it too is similarly elevated in importance. It follows, then, that to abandon X, when X is a gospel issue, is somehow to diminish or threaten the gospel.
These initial observations may seem a bit theoretical, but we must see that they carry significant practical consequences. Many people use statements of the sort “X is a gospel issue” in order to establish the boundaries of Christian fellowship. We may not want to admit Bob to the leadership of our local church or our Christian group because he denies X and X is a gospel issue. We may decide to admit Rosamund to something or other, because although she disbelieves Y, in this case Y is not a gospel issue, so the topic is not properly used as a criterion of admission or exclusion.
(2) What we mean by “gospel issue” needs clarification.
On the one hand, because of the complex entanglements of theology, with a little imagination one might argue that almost any topic is a gospel issue. At one level or another, everything in any theology that is worth the name is tied to everything else, so it is possible to tie everything to the gospel. In that sense, well-nigh everything is a gospel issue.
“In the gospel, Jesus saves us from sin. Sin is comprehensively given clarity by the Ten Commandments. To ignore the Sabbath law is to ignore one of the Ten Commandments. To ignore it or annul it is therefore to break the moral law of God, and such a stance surely demonstrates that one is not seriously confronting sin, the sin from which the gospel saves us. If one claims to be a Christian but does not fight against sin, the ostensible gospel in which we believe is really no gospel at all. So observance of the Sabbath is a gospel issue.”
“Our generation is notable for the clever hermeneutical dodges it invents to sidestep what Scripture clearly says. Scripture clearly teaches complementarianism, a conclusion that can be ducked only by the hermeneutical tricks that betray a heart far removed from confessing that Jesus is Lord, which is part of what it means to confess the gospel. To confess Jesus is Lord and not bow to his Word is to deny the gospel. Complementarianism is a gospel issue.”
“The filioque phrase is necessary to preserve the truth that the Spirit proceeds from the Father and the Son. Without that confessional point, our understanding of the Trinity is adversely affected, and sooner or later that in turn affects our understanding of the work of the persons of the Godhead in redemption itself. Is it any wonder that Eastern Orthodoxy, which repudiates thefilioque clause, puts far more weight on Jesus’ incarnation and resurrection than on his atoning work on the cross, despite the apostle Paul’s insistence that the cross is central? Thus the filioque clause is a gospel issue.”
I am not arguing that any of these three arguments is necessarily valid. It is easy to imagine how another person might look at the texts and arguments and reach quite different conclusions. For example, someone might hold that Scripture does not teach complementarianism and that for some Christians, at least, no hermeneutical tricks are consciously deployed to reach this conclusion. Therefore the egalitarian may hold that Jesus is Lord with a perfectly clear conscience. If so, then complementarianism is not a gospel issue. Once again: at this juncture I am not arguing for the validity or invalidity of either pole. All I am saying is that virtually any topic can be tied to the gospel in some way or another. If that is all we are doing, the argument “X is a gospel issue” is a well-nigh useless argument, because the claim could be advanced for almost any topic, irrespective of that to which X refers. The choice of X will in that case reflect rather more the identity of the individual or group that is making the claim, than the persuasiveness of the argument.
On the other hand, “gospel issue” may continue to be a useful category if it refers not to any biblical or theological topic that can be tied in some way or other to the gospel—for the organic nature of biblical and theological truth demonstrates that just about every topic can be tied to the gospel—but to biblical and theological topics the denial of which clearly affect our understanding of the gospel adversely.
(3) Clearly “X is a gospel issue” is a useless argument where there is little agreement as to what the gospel is. For example, if by “gospel” we mean the sort of thing that is often taught in lowest-common-denominator evangelicalism—e.g., “Jesus died on the cross for my sins,” without any attempt to establish what is meant by the confession—then in what sense is penal, substitutionary atonement a gospel issue? It may be a gospel issue in that in some sense or other it is tied to Jesus’ death, but that is not enough to make the statement “Penal, substitutionary atonement is a gospel issue” say anything important (my second point, above)….