Unit quiz: Sources, History and Applied Ethics: Creed, Fathers, Canon Law, the Galileo Archive and the Ethics of War

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Question 1

A student reads the Nicene-Constantinopolitan creed and asks whether a Catholic is bound to hold that the clause 'and from the Son' (the filioque) is part of the original creed, given that the Greek Churches do not use it. Give the accurate answer at three levels: what is defined, what is liturgically open, and what the 1995 clarification requires of Catholic presentation.Defined: the Holy Spirit proceeds eternally from the Father and the Son as from one principle and a single spiration (the Council of Florence, 1439), and the Spirit is 'the uncreated Person who proceeds from the Father and the Son as their eternal love' (Paul VI, Credo 1968, section 9), confessed in the 1998 Profession of Faith as 'who proceeds from the Father and the Son'. Not part of the original: the Pontifical Council for Promoting Christian Unity's 1995 clarification states that the Symbol 'only became known and received by Rome on the occasion of the Ecumenical Council of Chalcedon in 451', and Florence itself says the words were added 'for the sake of declaring the truth and from imminent need'. Requires of Catholic presentation: the same document lays down that the doctrine 'must be understood and presented by the Catholic Church in such a way that it cannot appear to contradict the Monarchy of the Father', adding that ekporeusis 'signifies only the relationship of origin to the Father alone as the principle without principle of the Trinity', and it affirms that 'The Father alone is the principle without principle ... of the two other persons of the Trinity, the sole source ... of the Son and of the Holy Spirit'. The Eastern liturgical form is therefore not condemned, and the metaphysics of how generation and procession differ is left to theology.Defined: the Spirit proceeds from the Father and the Son. Liturgically open: nothing, since Florence declared the addition licit and reasonable. Requirement: the clarification calls on the Eastern Churches to restore the original creed text without the addition, so a Catholic should regard the Eastern form as an incomplete confession awaiting correction.

Question 2

In a debate about the concept of 'the consensus of the Fathers', one participant says the concept is useless because the Fathers contradicted each other about the soul's origin and about the fate of the unbaptised, and the Church even condemned some positions of Origen. Another says the consensus is a straightforward vote in which the majority of patristic quotations settles a question. What is the correct account of how the Church uses patristic testimony?The first participant is right in effect: because patristic writing contains contradiction and contains positions later condemned, the consensus patrum functions only as historical background, and doctrine must be derived from Scripture and the magisterium without appeal to the Fathers, which is why the Church's own councils, when they quote the Fathers, do so for rhetorical support only.Neither account is right. The Church uses the Fathers as witnesses to the faith handed down, tested against Scripture and against the faith already received, and it discriminates within the corpus. The acts of Ephesus show the test operating: Cyril's letters were 'approved as being orthodox and without fault' because they agreed 'either with the divinely inspired Scriptures, or with the faith handed down and set forth in the great synod of holy Fathers, which assembled sometime ago at Nice in Bithynia'. The acts of Chalcedon show the same procedure producing wording: the bishops cried 'We believe as Leo' and the judges directed, 'Add then to the definition, according to the judgment of our most holy father Leo, that there are two natures in Christ united unchangeably, inseparably, unconfusedly.' That some patristic ideas were later rejected (Origenist speculation; the Apollinarian denial of a human mind in Christ) shows the criterion at work rather than undermining it, and the Church's own documents acknowledge unresolved patristic debate alongside defined doctrine: the 1974 declaration on abortion says that 'the various opinions on the infusion of the spiritual soul did not introduce any doubt about the illicitness of abortion'.

Question 3

A parishioner says: 'The Church changed its discipline in 2015 when it made annulments easier, which shows that its teaching on the indissolubility of marriage is really just a policy, and the same must be true of the restriction of ordination to men, since both are in the Code of Canon Law.' Diagnose the error and state what distinguishes the two cases.The error is treating every canon as the same kind of norm. Canon 1095 states the grounds of incapacity to consent, and the Church's teaching that a ratified and consummated sacramental marriage cannot be dissolved is doctrine; Mitis Iudex Dominus Iesus (2015) reformed the *procedure* for declaring nullity, shortening and simplifying it, adding a briefer process for manifest cases, and listing circumstances indicating probable nullity such as 'the defect of faith which can generate simulation of consent or error that determines the will', 'a brief conjugal cohabitation', and 'an abortion procured to avoid procreation'. A declaration of nullity judges that a valid marriage never existed; it does not dissolve one. In the second case, canon 1024 ('a baptized male alone receives sacred ordination validly') restates a doctrine, and John Paul II's Ordinatio Sacerdotalis concludes that the Church has no authority to confer priestly ordination on women and that this judgment 'is to be definitively held by all the Church's faithful'. The distinction the parishioner needs is the one between doctrine restated in law and discipline; the test is the question 'what happens to the faith if this norm changes?'The parishioner is right about the method: because both matters are governed by canons in the same Code, both are disciplines that the competent authority may reform, and the only difference between them is the weight of the pastoral arguments on each side, which is why the same pontificate could reform one and not the other without any doctrinal inconsistency.

Question 4

A lecturer states: 'The Galileo affair proves that the Church once taught as doctrine that the earth does not move, and that it later admitted the doctrine was false, which is why no one should take its teaching on science seriously today.' Assess the claim using the primary documents.The claim is substantially correct: because the Inquisition declared heliocentrism contrary to Scripture and Galileo was condemned for heresy, the case is an instance of an erroneous doctrinal definition later reversed, which shows that the Church's teaching authority cannot be trusted on questions that touch the natural world.Every clause needs correction. The Church never defined geocentrism: no ecumenical council taught it, and the 1633 act was a sentence of the Roman Inquisition declaring that Galileo had 'rendered yourself vehemently suspected by this Holy Office of heresy, that is, of having believed and held the doctrine (which is false and contrary to the Holy and Divine Scriptures) that the sun is the center of the world', a canonical censure by a congregation, not a definition of faith and not a finding of formal heresy. Bellarmine's 1615 letter shows what was actually argued: if a true demonstration existed, 'it would be necessary to proceed with great caution in explaining the passages of Scripture which seemed contrary', but 'I do not believe that there is any such demonstration; none has been shown to me', and the question was 'not a matter of faith from the point of view of the subject matter' but 'on the part of the ones who have spoken'. In 1992 John Paul II said that 'the clarifications furnished by recent historical studies enable us to state that this sad misunderstanding now belongs to the past' and drew a standing lesson: 'From the Galileo affair we can learn a lesson which remains valid in relation to similar situations which occur today and which may occur in the future.' So there was a real exercise of authority, a real misjudgment about how Scripture bore on a physical question, and a papal correction of the misjudgment; there was no defined doctrine to be overturned.

Question 5

A Catholic colonel argues that a proposed attack on an enemy city is proportionate because it would end the war quickly, while a Catholic peace activist argues that Pope Francis abolished the just-war criteria, so no military action can be legitimate. Using the Church's texts, show what is wrong with both arguments.Both mishandle the layers of the Church's teaching. The colonel's proportionality calculus cannot be applied to the proposal at all: the Catechism forbids the direct killing of noncombatants (CCC 2313) and condemns any act of war 'directed to the indiscriminate destruction of whole cities or vast areas with their inhabitants' as 'a crime against God and man' (CCC 2314), and Veritatis Splendor 80 supplies the framework in which such acts are excluded as intrinsically evil rather than weighed against benefits. The activist, meanwhile, converts a development into a repeal: the Catechism still sets out the four conditions for legitimate defence (CCC 2309), including that 'the use of arms must not produce evils and disorders graver than the evil to be eliminated', while warning that 'the power of modern means of destruction weighs very heavily in evaluating this condition'. Fratelli Tutti 258 says it 'is very difficult nowadays to invoke the rational criteria elaborated in earlier centuries', which presupposes the criteria; and John XXIII's 'Nuclear weapons must be banned' (Pacem in Terris 112) together with Francis's 2017 statement that 'the threat of their use, as well as their very possession, is to be firmly condemned' constitute a firm authoritative development, not a definition that abolishes the tradition.The activist is closer to the truth, because a pope who says the criteria can no longer be invoked has effectively replaced them, and the colonel's position is therefore dissent; the only remaining Catholic position is that the use of force is now excluded in every case, and the Catechism's conditions should be read as historical background.

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