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245
THEOLOGICAL DOCUMENTS  —COMMISSION ON THEOLOGY AND CHURCH RELATIONS
L U THER  AN  REFO  RMA  TI  O N 
13 
 
 
 
 
everything that God has not clearly taught in the New Testament, for example, in matters pertaining to various 
foods, beverages, attire, places, persons and various forms of conduct.” 19 He lists other examples where both 
Karlstadt and Rome attempt to force Christians to accept or reject a certain practice that is truly an adiaphoron. 
Their error is the same: 
They both destroy Christian freedom, and they are both anti- Christian. But the pope does it through 
commandments, Dr. Karlstadt through prohibitions. The pope commands what is to be done, Dr.  
Karlstadt what is not to be done. Thus through them Christian freedom is destroyed in two ways: on the 
one hand, when one commands, constrains, and compels what is to be done, which is nevertheless not 
commanded or required by God; on the other hand, when one forbids, prevents, and hinders one from 
doing that which is neither prohibited nor forbidden by God. For my conscience is ensnared and misled 
just as much when it must refrain from doing something, which it is not necessary to refrain from doing, 
as when it must do something, which it is not necessary to do. When men must refrain from doing that 
from which they need not refrain and are compelled to do what they need not do, Christian freedom 
perishes in either case.20 
Like his principle of Christian freedom in the Invocavit Sermons, it is imperative to understand that the 
practice of adiaphora cuts both ways. Whether commanding that which is not commanded or prohibiting that 
which is not prohibited, one is still requiring something that Scripture has not required and thereby establishing a 
law that binds consciences. True Christian liberty is exercised in love, where the consciences of weaker Christians 
are honored, matters that are free are left free, and a new law is not created by regarding as necessary that which 
Scripture does not regard as necessary. 
While neither the Invocavit Sermons nor Against the Heavenly Prophets are in the Lutheran Confessions 
or cited authoritatively in them, Luther’s approach will shape how the Lutheran Confessions do talk about 
adiaphora. Both the Augsburg Confession and the Apology rebuke those who set up the traditions of the church 
as requirements. Where they are established as requirements for the purpose of pleasing God or earning salvation, 
they are clearly rejected. That is not a reason to act carte blanche in such matters. On the contrary, certain 
traditions may be retained, even where there is no scriptural command. As Apology XV describes this approach:
 
We teach that liberty in these matters should be exercised moderately, so that the inexperienced may 
not take offense and, on account of an abuse of liberty, become more hostile to the true teaching of the 
gospel. Nothing in the customary rites may be changed without good reason. Instead, in order to foster 
harmony, those ancient customs should be observed that can be observed without sin or without prov-
ing to be a great burden. In this very assembly we have sufficiently shown that, for the sake of love, we 
will reluctantly observe adiaphora with others, even if such things may prove to be somewhat burden-
some. We judge that the greatest possible public concord which can be maintained without offending 
consciences ought to be preferred to all other interests. (Apology XV 51–52)21 
 
 
 
19 LW 40:127. 
20 LW 40:128. 
21 KW, 230. 
L U THER  AN  REFO  RMA  TI  O N 
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Beyond the simple moderation of Christian freedom, the Augustana and Apology also see a positive function 
for those things categorized as adiaphora. They argue that certain practices may be retained and observed for the 
benefit of instructing the faithful and maintaining peace and order in the church. For instance:  
For after all, all ceremonies should serve the purpose of teaching the people what they need to know 
about Christ. (Augsburg Confession XXIV 3)22 
For although the holy Fathers themselves had rites and traditions, they still did not maintain that these 
things were useful or necessary for justification. They did not obscure the glory and work of Christ. In-
stead, they taught that we are justified by faith on account of Christ and not on account of these human 
acts of worship. Moreover, they observed these human rites on account of their usefulness for the body, 
so that people may know at what time they should assemble, so that they may have an example of how 
all things in the churches might be done decently and in order, and finally, so that the common people 
may receive some instruction. (For different seasons and various rites are valuable in admonishing the 
common people.) (Apology XV 20)23 
Ceremonies should be observed both so that people may learn the Scriptures and so that, admonished  
by the Word, they might experience faith and fear and finally even pray. For these are the purposes of the 
ceremonies. (Apology XXIV 3)24 
Such practices are not irrelevant or unimportant, let alone should we be indifferent toward them. On the 
contrary, we may even use them positively within the church to the benefit of the faithful, provided the way they 
are communicated does not go beyond what Scripture says about them. Ultimately, for Luther, as for the Lutheran 
Confessions, our approach to questions of adiaphora requires both theological faithfulness and pastoral sensitivity. 
We must not treat as required those practices that are neither commanded nor prohibited, or we risk setting up a 
new law that binds the consciences of the people. Yet we may use such free matters profitably within the church if 
we speak about them rightly and instruct the faithful in them responsibly, and we may even decide to make use of 
the same ceremonies to
 gether uniformly as a corporate body. This is the balance the Lutheran Reformation sought 
to strike, and it is the balance we continue to seek. 
 
Questions for Discussion: 
1. If matters of adiaphora may be beneficial for instruction, can they also be detrimental to faithful instruc -
tion? Discuss some possible examples of each in the church today. 
2. How would you explain the difference between “requiring” adiaphora and “retaining” adiaphora? 
3. How do you evaluate Luther’s willingness to (temporarily) permit communing in one kind out of love for 
“the weak”? Does this violate the understanding that an adiaphoron is something Scripture does not teach 
or require? 
 
 
 
22 KW, 68. 
23 KW, 225–226. 
24 KW, 258. 
L U THER  AN  REFO  RMA  TI  O N 
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CASE STUDY 4 
Adiaphoristic Controversy (16th Century) 
When Lutherans think of adiaphora, it is most likely the article on “church practices” (Kirchengebräuche) in 
Formula of Concord X that first comes to mind. This article helped conclude a long -running debate concerning 
whether and to what degree Lutherans could change practices considered adiaphora in times of persecution or 
when doing so might cause offense in the church. The controversy arose partly because of how German Lutherans
 
— in the wake of Luther’s death and political turmoil in the Holy Roman Empire — sought to apply their view 
of adiaphora noted above in the Augsburg Confession and its Apology. Those confessions were clear that human 
traditions or ceremonies neither commanded nor prohibited by Scripture were not required for salvation. Neither 
should they be foisted upon the church in a way that binds consciences, as Luther warned in his Invocavit 
Sermons. However, the church is free to retain, adopt or dispense with such practices insofar as that is deemed 
beneficial for the people. They may be considered beneficial for the purpose of instruction or for the maintenance 
of peace and order in the church, or even (as noted earlier in the citation from Apology XV) for the sake of con-
ciliation and broader church unity within the Holy Roman Empire. It was on this latter basis that certain German 
Lutherans made concessions in the worship and governance of the church that others considered a compromise in 
the doctrine the church had worked so hard to defend and a potential stumbling block for the laity.
25 
The controversy began after the League of Schmalkald, a defensive alliance of German Protestants who sub -
scribed to the Augsburg Confession, fell to the forces of Charles V, the Roman Catholic emperor, in 1547. Prince 
John Frederick of Electoral Saxony, nephew of Frederick the Wise (patron of the Reformation in Wittenberg and 
Luther’s prince), lost some of his lands to Duke Moritz of Ducal Saxony. Even though he was raised Lutheran, 
Moritz was favorable to Charles V and the Holy Roman Empire’s attempt to establish religious uniformity. In 1548, 
Charles commissioned a set of church regulations called the Augsburg Interim, which would govern churches in 
southern Germany until the recently convened Council of Trent could put permanent regulations in place. The 
Augsburg Interim allowed Protestants to commune in both kinds and to have married priests but otherwise rolled 
back many of the reforms already established in Lutheran churches, such as issues related to justification, Roman 
papal and episcopal authority, the medieval sacraments, and the traditional practice of the mass, among many 
other ceremonial matters.26 
Faced with this prospect, Wittenberg theologian Philip Melanchthon began working with Moritz of Saxony to 
develop a more acceptable set of regulations that he hoped would protect the Lutheran churches in Moritz’s territo-
ries. The elder statesman of the Reformation and author of the Augsburg Confession and its Apology, Melanchthon 
helped draft what became known as the Leipzig Interim — an alternative proposal that likewise conceded certain 
practices to Rome. Leipzig insisted upon justification by f aith (albeit in a more ambiguous form than the Augsburg 
Confession or Apology), but also restored compulsory private confession and extreme unction, the Latin rite of  
the medieval mass with its traditional ceremonies, the canonical hours and services for the dead, the prohibition 
 
25 Studies of the Adiaphoristic Controversy and its relationship to Formula of Concord X include: Charles Arand, Robert Kolb and James Nestingen, The Lutheran Confessions:  Histo-
ry and Theology of the Book of Concord (Minneapolis: Fortress Press, 2012), 171–190; Friedrich Bente, Historical Introductions to the Book of Concord (St. Louis: Concordia Publish-
ing House, 1965), 107–112; Robert Kolb, “Historical Background of the Formula of Concord,” in A Contemporary Look at the Formula of Concord, ed. Robert D. Preus and Wilbert 
H. Rosin (St. Louis: Concordia Publishing House, 1978), 17–26; Kurt Marquart, “Article X, Formula of Concord: Confession and Ceremonies,” in Contemporary Look , 260–270; and 
Oliver K. Olson, Matthias Flacius and the Survival of Luther’s Reform (Wiesbaden: Harrassowitz Verlag, 2002), 68–160. 
26 For the text of the Augsburg Interim, see Sources and Contexts  of the Book of Concord, ed. Robert Kolb and James A. Nestingen (Minneapolis: Fortress Press, 2001), 144–182. 
L U THER  AN  REFO  RMA  TI  O N 
16 
 
 
 
 
of meats on Fridays and Saturdays or in Lent, and episcopal ordination. 27 Many of these concessions came with 
specific conditions (such as that bishops would not oppose the Gospel), but they also appeared to contradict argu-
ments made earlier by Melanchthon and adopted by Lutherans in the confessions he had written.  
Opponents arose who accused Melanchthon of conceding too much in the Leipzig Interim. Matthias Flacius 
Illyricus, in particular, led the church in arguing against the Interim. There were two very different concerns. One 
was that the doctrines articulated in the Interim were ambiguous at best, if not contrary to the Lutheran confession 
of faith. Melanchthon denied this accusation. The other had to do with reinstituting practices that the Lutheran 
churches had already rejected because of their association with the Roman church and its teaching. The most 
curious of these was the use of traditional vestments, such as the surplice, which might give the impression to the 
unlearned that Lutherans were reverting to the old faith. According to Flacius, “Whoever puts on a surplice denies 
Christ’s teaching.”
28 Even where doctrine was not explicitly changed or where truly free practices were changed in 
accordance with the Augsburg Confession, there was still a concern for the reasons why changes were being made, 
namely, that the church was doing so under pressure from a civil government hostile to the Gospel, rather than 
freely for the sake of peace, good order and instruction in the church. Even though some of these practices were 
technically free, changing them due to societal pressures ran the risk of not giving faithful witness to the doctrines 
that separated them from Rome. In this event, adiaphora ceased to be truly neutral things.
 
The controversy was eventually resolved due to political changes. In 1552, the Treaty of Passau brought 
an end to the Schmalkaldic War between Protestants and Catholics. In 1555, the Peace of Augsburg granted 
Lutheran princes the right to permit the Lutheran confession of faith in their territories, provided they not prohibit 
Catholic churches. Neither the Augsburg Interim nor the Leipzig Interim remained in effect. Even Melanchthon 
himself stood down, agreeing with Flacius that he had gone too far in making concessions to Rome in ceremonial 
matters.
29 Yet the controversy raised new questions regarding how Lutherans should treat adiaphora. Melanchthon 
believed that, in accordance with the Augsburg Confession and the Apology, the church had freedom to change 
practices that were adiaphora, whatever the reason, including pressure from civil government or in order to be at 
peace with Rome. Flacius and others believed adiaphora ceased to be free if one changed them due to persecution 
or if changing them caused scandal in the church. In his words, “Nothing is an adiaphoron when confession or 
offense is involved.”
30 When is an adiaphoron no longer an adiaphoron? 
This is the question addressed by Formula of Concord X. It does so with at least two pivotal arguments. 
First, it seeks to clearly define adiaphora. Ceremonies or other customs that are neither prescribed nor forbidden 
in Scripture count as true adiaphora. They exist strictly for proper decorum or good order, but are not properly 
speaking “divine worship,” that is, Word and Sacrament. The church is free to change these as it sees fit, provided 
it not do so frivolously or in such a way that causes offense (SD X 1 –10). Second, under threat of persecution, the 
church is conscience-bound 
not to change adiaphora in such a way that it might imply a change in its confession 
of the Gospel. “When the enemies of God’s Word want to suppress the pure teaching of the holy gospel, the entire 
community of God, indeed, every Christian, especially servants of the Word as the leaders of the community of 
God, are obligated according to God’s Word to confess true teaching and everything that pertains to the whole of 
 
27 For the text of the Leipzig Interim, see Sources and Contexts of the Book of Concord, 183–196. 
28 Oliver K. Olson, “Adiaphora, Mandata, Damnabilia,” Lutheran Forum (Spring 2010): 23. 
29 Bente, Historical Introductions, 112. 
30 Bente, Historical Introductions, 110.

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