2. Objections to salvation through implicit faith

The first objection we consider is that authoritative sources of Catholic doctrine teach that explicit faith in Christ is necessary for salvation. Crean, Fimister, and Joy list many such texts, which we can only summarise.Footnote ¹⁵ The most powerful passage is the Council of Florence’s assertion that salvation requires belief in the Trinity and that ‘no persons living outside the Catholic Church’ – including pagans, Jews, and heretics – can attain salvation unless they are joined to the Church before death.Footnote ¹⁶

Alongside Florence, Crean et al. mention several texts which imply that non-Christians will be damned because they have never been reached by missionaries.Footnote ¹⁷ In our view, such passages are moot, because they ignore the possibility – granted by Crean et al. – that God can save people without a public presentation of the gospel (e.g., by interior illumination). Other texts cited imply that one cannot be inculpably ignorant of the gospel,Footnote ¹⁸ or that one can fail to receive God’s offer of salvation simply because one lacks explicit Christian faith, despite invincible ignorance of the gospel.Footnote ¹⁹ But modern Catholics should reject these claims, since Lumen Gentium 16 teaches that God ensures that lack of explicit faith due to inculpable ignorance is no barrier to salvation, and clearly implies that such ignorance is possible.

Two additional documents mentioned by Crean et al. merit consideration. In 1703, the Holy Office declared that adults must be instructed about the Trinity and Incarnation before baptism even at the point of death, because faith in these mysteries is strictly necessary (necessary ‘by a necessity of means’) for salvation.Footnote ²⁰ Additionally, in Dominus Iesus (2000) para. 7, the Congregation for the Doctrine of the Faith (CDF)teaches that theological faith involves ‘the acceptance of the truth of Christ’s revelation’. Since such faith is the ‘foundation and root of all justification’,Footnote ²¹ this implies that one cannot be saved without explicit Christian faith.

The contention that explicit faith is required for salvation also receives support from Scripture. Besides the assertion of Hebrews 11:6 that ‘without faith, it is impossible to please God’, many Biblical passages seemingly imply that one cannot be saved without explicit faith in Christ (e.g., Mark 16:16; Acts 4:12; John 3:18; 6:40). One important text for discussions of implicit faith is Romans 10:11-4:

This passage appears to indicate that salvific faith involves explicit acceptance of the kerygma (v. 11), and additionally implies a key theological principle: faith is an affirmative response to explicit proclamation of the gospel (v. 14). As Paul explains in v. 17, ‘faith comes from what is heard [“fides ex auditu”], and what is heard comes through the word of Christ’. The ‘fides ex auditu’ principle is endorsed in Trent’s description of justification in adults,Footnote ²² and D’Costa defends it as part of universal access exclusivism, which he terms the ‘official Catholic position’.Footnote ²³

The second kind of objection to IFS holds that even if some species of implicit faith may sometimes be salvific, many modern non-Christians cannot possess such faith. Crean et al. provide one argument to this effect.Footnote ²⁴ They maintain that although before Christ’s passion non-Christians who believed in God’s existence and providence could have implicit faith that God would redeem humanity through some appropriate means (in fact, the Paschal Mystery), this was not possible after the crucifixion. One cannot trust that God will perform actions He has already accomplished. Yet this is unpersuasive. Modern unevangelised people can trust that either God will secure their redemption, or He has already achieved it in some unknown way.

DiNoia develops a more subtle case. On his telling, the focal case of implicit faith in Catholic theology concerns the belief of individual Catholics in doctrines with which they are unfamiliar.Footnote ²⁵ Such implicit faith is grounded in explicit belief in and practical commitment to the Church’s central teachings and doctrinal authority. It, therefore, rests on someone’s conscious relationship to the publicly identifiable teachings of a religious community.Footnote ²⁶ By contrast, in IFS ‘implicit faith’ refers to faith which is not grounded in any explicit belief or commitment to the Church. Ascribing implicit faith to non-Christians, therefore, extends the concept of implicit faith beyond its natural range of applicationFootnote ²⁷ and should be avoided.Footnote ²⁸

DiNoia’s analysis finds support from Bullivant. Bullivant characterises implicit faith – in Rahner’s theology, at least – as unconscious belief.Footnote ²⁹ Whilst unconscious mental states appear mysterious, one can sometimes accept their existence to explain human behaviour.Footnote ³⁰ However, unconscious belief in Christianity is not needed to explain the behaviour of most non-Christians. For instance, whilst Rahner suggests that the implicit faith of atheists is grounded in their respect for absolute moral values, Bullivant objects that atheists’ respect for such values is adequately accounted for by their judgement that moral values exist in God’s absence.Footnote ³¹ As Di Noia remarks, ‘The concept of implicit faith, when extended to apply to the religious states and dispositions of non-Christians, loses its explanatory efficacy when there is no straightforward and convincing way to link what is said to be implicitly held with an explicit body of beliefs, practices and valuations’.Footnote ³²

Critics of IFS also suggest that one cannot embrace a personal relationship with God or Christ without consciously employing concepts including ‘God’ or ‘Christ’, which many unevangelised people lack. Crean et al. assert that, ‘It is not possible to repent of an offence against someone without knowing that that is what one is doing, nor is it possible to enter into friendship with someone without being aware of it’. DiNoia makes a similar argument: ‘The logic of the concept of faith is such as to exclude the notion of “having faith in someone who is not in some sense known”’.Footnote ³³

The final form of objection to IFS suggests that there are better explanations of the salvation of the unevangelised. Crean et al. moot one traditional possibility: if non-Christians persevere in obeying natural law, God will send them missionaries. However, it appears incredible that no-one in historically unevangelised societies diligently followed natural law. Consequently, they recommend another hypothesis: immediately before death, non-Christians who obey natural law receive ‘illumination in a way that [is] not empirically detectable’. Revelation via ‘Near Death Experiences’ allows non-Christians to reach explicit Christian faith.

DiNoia and D’Costa advance another proposal.Footnote ³⁴ They suggest that suitably disposed non-Christians encounter Christ after death, so that they can explicitly embrace Him in faith and love. To support his position, D’Costa draws on the Patristic tradition that Christ descended into the Limbus Patrum to preach to – and subsequently, baptise and admit to Heaven – just people who died before the crucifixion. Following theological consensus that conversion after death is impossible, he argues that the post-mortem decision to follow Jesus is based on prior dispositions. This decision ‘does not require “conversion”, but a coming to maturation and completion’.Footnote ³⁵ Bullivant extends D’Costa’s proposal by speculating that the disposition of non-theists to embrace the gospel after death is grounded in their love of neighbours, who secretly mediate Christ’s presence (cf. Matthew 25:31–46).Footnote ³⁶

Both theories enjoy evident advantages. On one hand, these accounts allow that God affords all humans the possibility of redemption, if they co-operate with prevenient grace. Equally, they are compatible with the ‘fides ex auditu’ principle, and the claim that salvation requires explicit Christian faith.

3. The nature of implicit faith

To best defend IFS, we should explain what ‘implicit faith’ means. We begin with ‘faith’. Following the Catechism, by faith we mean the supernatural virtue by which ‘we believe in God and believe all that he has said and revealed to us, and that Holy Church proposes for our belief, because he is truth itself’.Footnote ³⁷ This virtue is a habit – a stable disposition – which aims at a supernatural good and is graciously infused by God. Although aspects of revelation and correspondingly faith are non-propositional, we explore how non-Christians may have implicit, propositional belief in Christian doctrines through the virtue of faith. According to Aquinas, faith is factive: any belief held through the exercise of faith is true.Footnote ³⁸ Like Aquinas, we hold that faith is a disposition to believe propositions which God has actually revealed (or, will reveal) as opposed to those which one believes He has revealed. Exercising this disposition – i.e., believing revelation through the virtue of faith, whether explicitly or implicitly – constitutes an act of faith.

But what is implicit faith? Modern theologians are unhelpfully vague on this point. In what follows, we canvass extant accounts of non-explicit belief, before outlining two species of implicit faith which non-Christians can possess.

Scholastic authors distinguished explicit from implicit acts of faith, providing an analysis which extends to acts of belief in general. On their understanding, one makes an explicit act of faith in some revealed proposition p whenever one forms what analytic philosophers call occurrent belief that p (see below) through the virtue of faith. Similarly, one explicitly believes p if one has occurrent belief that p. As Aquinas states, ‘we are … said explicitly to believe certain things when we affirm those things about which we are actually thinking’.Footnote ³⁹

By contrast, an implicit act of faith in p does not involve occurrent belief. On most Scholastic accounts, it involves explicit faith in some other revealed proposition(s) q, which ‘virtually’ or ‘confusedly’ contains p. Suárez’s definition is typical: ‘[F]aith is called implicit in respect to other things [propositions?], which are contained virtually or confusedly in something else which is believed explicitly’.Footnote ⁴⁰ In Aquinas’ words, ‘We believe these same things implicitly when we affirm certain other things in which they are contained as in general principles’.Footnote ⁴¹

In De Veritate 14.11, Aquinas explains that ‘implicit’ is applied to faith by analogy. Properly speaking, it signifies the possession of ‘virtual’ properties in a simple reality. Aquinas has in mind the way in which, according to Aristotelian metaphysics, causes virtually possess their effects: causes can bring about particular effects because they possess sufficient reality and power to do so. Similarly, general principles contain conclusions – i.e., they have the power to bring those who study the former to knowledge of the latter. Aquinas is presumably thinking of the principles of Aristotelian sciences, in which ‘essential facts are in some way expressed in the definition of a subject, and from these other derivative facts are demonstrated’.Footnote ⁴² Accordingly, when Scholastics describe beliefs as ‘contained’ in others, perhaps they mean that those beliefs are entailed by others, just as the conclusions of syllogisms are entailed by their premises. Standard examples of implicit faith include the belief of uneducated Catholics in Church teaching with which they are uninformed, the Church’s belief in doctrines before their definition in creeds, and the salvific faith in Christ possessed by some people before the Incarnation.

But why might explicit belief in q constitute implicit belief in p, just because q entails p? After all, it is often difficult to perceive what one’s beliefs entail. Here, we meet a second aspect of implicit faith in Scholastic thought: implicit belief involves a commitment or disposition to explicit belief. The idea is perhaps that if one believes some propositions, one is disposed to believe their entailments – at least, if one becomes aware of the latter. In this way, people are described as committed to propositions they do not explicitly espouse, since those propositions are entailed or made probable by their broader beliefs. If upon realising the relevant entailments someone did not form explicit belief in those propositions, they would typically exhibit an epistemic vice: inconsistency.

The nature of implicit belief as disposition or commitment to believe becomes clear elsewhere in Scholastic discussions of implicit faith. Describing the duty of uneducated Catholics to believe obscure doctrines, Aquinas writes that they are not ‘bound to believe them explicitly, but only implicitly, or to be ready to believe them’, insofar as they are prepared to believe whatever is taught in Scripture as interpreted by the Church.Footnote ⁴³ In this example, those with implicit belief do not explicitly believe any proposition which entails the truth of those propositions they embrace with implicit faith; rather, they commit themselves to believe whatever the Church actually teaches. Other Scholastic discussions indicate that implicit faith is a disposition by equating or associating it with the desire to believe whatever God reveals (fides in voto).Footnote ⁴⁴

We suggest that disposition or commitment (‘being ready’) to believe p is necessary for the possession of implicit belief that p, on the Scholastic understanding. To see that explicit belief that q is insufficient for implicit belief that p, even if q entails p, consider cases where someone believes q, but would never come to believe p even if informed that q entails p (say, due to cognitive malfunction or stubbornness). Perhaps, a naturalist firmly believes that there are objective moral facts, but if she were shown that this proposition entails God’s existence, she would abandon moral realism. The naturalist’s cognitive and volitional commitments are so divorced from theism that one should not attribute to her even implicit belief in God.

One might therefore wonder whether some suitable disposition to believe p is sufficient for (or, constitutes) implicit belief that p, even absent belief in any proposition which entails p. Scotus held this position, maintaining that ‘an act is possessed implicitly when a habit is possessed’.Footnote ⁴⁵ On this basis, he argued that children, or adults with severe cognitive disabilities, can receive justification at Baptism if neither they nor their baptisers make any explicit act of faith.Footnote ⁴⁶ Whilst justification requires an act of faith, by receiving the habit of faith at baptism, baptised people make implicit acts of faith. Scotus likewise holds that adults with the habit of faith thereby have implicit faith in all Catholic doctrines.Footnote ⁴⁷

Still, the claim that one can have implicit faith or belief which is not grounded in explicit belief is contentious. Most Scholastics held that some explicit belief – minimally, in God’s existence and providence – is necessary for the salvation of adults with fully-functional cognitive capacities. Aquinas argued that even when infants or adults with cognitive disabilities receive justification through Baptism, they appropriate the explicit faith of others.Footnote ⁴⁸ However, some Late Scholastics countenanced that adults baptised as children could be justified if they possessed the habit of faith but lacked opportunity to make any act of explicit faith before death.Footnote ⁴⁹

In sum, Scholastic discussions of ‘implicit faith’ are messy. A clearer characterisation of this concept would detail which dispositions to believe p are necessary and/or sufficient for implicit belief that p. Moreover, if implicit belief that p requires explicit belief that q, such a characterisation should explain how p and q must be related.

The ambiguity of ‘implicit belief’ becomes further evident when we consider analytic epistemology, which uses the term ‘belief’ itself with latitude. There is no analytic consensus on the nature of belief, but we here consider two prominent positions: representationalism and dispositionalism. According to representationalism, for S to believe that p, S must have a representation of p in her mind. Typically, this is characterised as a linguistic token. Other representationalists have argued that a linguistic token is unnecessary; instead, S’s belief-representation might be described as a ‘map’.Footnote ⁵⁰

Representationalists distinguish occurrent from dispositional beliefs. Many of our beliefs (i.e., mental representations) are not present to our consciousness at any given moment. Suppose belief that p involves possessing the concept p and judging it to be true. Since humans only consciously entertain a few propositions at once, most of our beliefs are not held through conscious endorsement. Rather, representationalists suggest, many judgements are stored in our minds. Occurent beliefs are judgements present to our consciousness, whereas dispositional beliefs are judgements stored unconsciously.

The main alternative to representationalism is the dispositionalist view that beliefs consist of dispositions. On Eric Schwitzgebel’s account, one believes a proposition if one possesses enough relevant phenomenal, behavioural, and cognitive dispositions.Footnote ⁵¹ For example, one might be a theist because one possesses some of the following: the disposition to form the conscious judgement ‘God exists’, the disposition to pray when anxious, and the disposition to infer ‘naturalism is false’ from ‘God exists’.

Representationalists and dispositionalists agree that ‘belief’ has different senses. We now canvas some forms of belief which might be described as ‘implicit’:

1. 1. Belief without linguistic representation.

   Some representationalists hold that the mental representations required for belief need not be linguistic. Perhaps, a wolf’s belief that his pack is ‘that way’ is represented by a map-like image depicting the pack’s direction, although no linguistic item in the wolf’s mind represents the proposition ‘my pack’s over there’.

2. 2. Belief without conceptual representation

   Jerry Fodor and Daniel Dennett argue that one can have beliefs without any conceptual representation.Footnote ⁵² This is especially intuitive for dispositionalists who believe that beliefs can consist solely in phenomenal and/or behavioural dispositions. Consider a chess player who holds rudimentary beliefs about how to begin the game. Following these beliefs, she never develops her queen early. However, as a very young player, her mind cannot represent the proposition ‘one should not develop one’s queen until the middle-game’, linguistically or otherwise. Accordingly, she is not disposed to affirm that proposition. One might nevertheless say that in some sense, she believes that one should not develop one’s queen until the middle-game.

3. 3. De re belief

   Thus far, we have considered what analytic philosophers call ‘de dicto’ belief. This species of belief concerns propositions. Roughly, ascribing de dicto belief to someone involves stating that they believe some proposition preceded by a ‘that’ clause.Footnote ⁵³ Tyler believes that his son, Ezra, loves him. By contrast, ‘de re’ belief concerns entities or ‘things’. De re belief is belief about a thing: belief that the thing has some feature, even if the believer does not recognise the thing under a specific description which in fact applies to it. A stranger seeing Tyler and Ezra might believe of Ezra that he loves Tyler (de re belief), without knowing Ezra’s name and thus believing that ‘Ezra loves Tyler’ (de dicto belief).

4. 4. Tacit belief

   There are many occurrent beliefs which one has never formed, although one would form them if one were to reflect on the relevant proposition(s). For instance, many people will spontaneously affirm that ‘pangolins are larger than termites’ upon questioning, even if they have never previously formed that judgement. It is natural to say that people believe such propositions, despite their lack of occurrent belief. Representationalists may hold that such beliefs are not strictly dispositional beliefs, for since one has not previously assented to the relevant propositions, there are no representations of them (or, of one’s assent) stored in one’s mind. Rather, as Robert Audi suggests, we should term these beliefs tacit beliefs or dispositions to believe.Footnote ⁵⁴

Two points follow from this survey. Firstly, there are many forms of belief one might call ‘implicit’. Secondly, one can develop accounts of implicit faith using any of the latter. One might argue that having de re belief in God is sufficient for a salvific relationship with Him. Alternatively, maybe cognitively disabled Christians can have de dicto belief in revealed propositions without possessing linguistic or conceptual representations of them. Since there are many kinds of ‘implicit belief’, one can develop IFS in different ways. Critics of IFS should acknowledge the diversity of ‘implicit’ forms of belief and consider the possibility that each may be salvific. To reject IFS without doing so appears premature.

Yet, for present purposes, we develop a characterisation of implicit faith as tacit belief and use it to defend IFS. We focus on tacit belief because it resembles the Scholastic concept of implicit belief and offers prospects for arguing that those without explicit faith can (implicitly) hold a wide range of Christian beliefs.

Tacit beliefs involve dispositions to occurrent belief. Unfortunately, it is difficult decide which dispositions constitute tacit belief, because some dispositions to believe p appear insufficient for tacit belief. One type of disposition to believe a proposition which does not constitute tacit belief is an unstable disposition. William Lycan imagines an ‘opinionated man’, who upon entertaining any proposition, ‘immediately affirms the proposition or denies it, depending on what else is going on in his global psychology at the time’.Footnote ⁵⁵ Because his dispositions to believe depend on his fluctuating psychology, they are inconsistent across time and space. Accordingly, we should not hold that he tacitly believes whatever propositions he is presently disposed to believe.

If so, one might follow Scotus’ lead in suggesting that one has tacit belief that p if one has an intellectual virtueFootnote ⁵⁶ which disposes one to believe that p, in appropriate circumstances.Footnote ⁵⁷ Because virtues are stable dispositions, they avoid Lycan’s problem. Accordingly, one might suggest that someone has implicit salvific faith just if one has the virtue of faith, since the virtue of faith inclines one to believe divine revelation. We term this species of tacit (secular) belief or (supernatural) faith ‘Scotist’ tacit belief or faith. Such faith is distinctly Christian. Since God has definitively revealed Himself in Christ, Scotist tacit faith involves the disposition to assent to Christian revelation in particular.

One might object that ‘Scotist tacit belief’ that p is not sufficient for tacit belief that p. Imagine that a history student has never studied Napoleon, but given her intellectual virtues, she is disposed to form the proposition ‘Napeoleon was the last warrior king’. If she were to consider its truth, she would conduct research in her college library and affirm it after studious reflection. Plausibly, the student lacks tacit belief concerning this proposition, because her present beliefs and cognitive capacities do not themselves incline her to any particular beliefs about Napoleon. She is only disposed to believe ‘Napeoleon was the last warrior king’ because of her current cognitive capacities, beliefs, and her context (proximity to the library). Her cognitive capacities, beliefs, and experiences do not intrinsically incline her to believe or disavow that proposition. Her situation differs from someone asked whether ‘pangolins are larger than termites’, since many people will naturally infer that proposition from their previous beliefs.

This argument assumes that tacit beliefs must be determined by one’s internal mental states and cognitive capacities. But regardless, Scotists have an available response. Although most intellectual virtues do not incline one to believe individual propositions, according to Scotus the virtue of faith itself disposes the faithful to assent to the particular propositions which God reveals – at least when those propositions are appropriately presented as credible.Footnote ⁵⁸

One might further object that it is implausible that someone can tacitly believe a proposition which does not appear probable on their available evidence. Yet on the Scotist account, this is possible. If one accepts this criticism, one can remedy the ‘Scotist’ account of implicit belief as follows: one tacitly believes that p iff one has a belief or experience e and an intellectual virtue v, such that v disposes one to believe that p on the basis of e, in appropriate circumstances. One has Thomist tacit faith in a revealed proposition p iff one has a belief or experience e and the virtue of faith, such that the habit of faith disposes one to believe that p on the basis of e, in appropriate circumstances. Because most Scholastics, including Aquinas, assumed that implicit beliefs must be grounded in explicit beliefs, we term this form of tacit belief/faith ‘Thomist’ tacit belief/faith.

In the remainder of this article, we defend IFS by arguing that non-Christians with Scotist or Thomist tacit faith can be saved. But first, we make two important observations about both forms of faith. Firstly, it is consistent with these accounts that one can have tacit belief that p whilst explicitly believing p’s negation. This might sound strange, and Aquinas and Scotus may have demurred.Footnote ⁵⁹ But it is not unheard of to say that someone has tacit belief in a proposition which they explicitly disavow, if their fundamental beliefs and cognitive habits incline them to affirm it. Say that Eleonore has firm feminist convictions which, given her cognitive habits, dispose her to believe on reflection that surrogacy is immoral. However, unexpectedly asked about this matter, she makes a snap judgement to the contrary. In an intelligible sense, Eleonore nonetheless believes that surrogacy is wrong: her evidence and fundamental cognitive habits incline her to that position. Another feminist might protest her endorsement of surrogacy: ‘Eleonore, you don’t really believe that!’. By parallel, Catholic theologians usually hold that Christians who believe propositions contrary to revealed doctrine because they misunderstand the Church’s teachings (‘material heresy’) do not thereby forfeit faith or justification.Footnote ⁶⁰

Secondly, we observe that someone can possess tacit belief that p even if their disposition to believe that p cannot easily be realised. Standard examples of tacit belief in analytic literature suggest that those with tacit belief that p would readily form an occurrent belief that p if quizzed about p. However, one can also speak of people having tacit belief in propositions which they would not easily affirm on reflection. This might be because they are unfamiliar with relevant concepts, or because they would need additional information to infer those propositions from their broader beliefs or evidence. In this way, historical authors are sometimes said to implicitly endorse propositions on the grounds that they would affirm the latter if they were acquainted with modern concepts, evidence, or other relevant information. Thus, one might opine that John’s Gospel implicitly affirms Nicene orthodoxy, or hold that given knowledge of modern embryology, Aquinas would believe that humans possess rational souls from conception. Out of charity, when ascribing such implicit beliefs, we consider what historical figures were disposed to believe if presented with accurate relevant information. Likewise, when we speak of someone with Scotist or Thomist tacit faith being disposed to believe divine revelation in appropriate circumstances, we mean (in part) that because they possess the virtue of faith and other beliefs or experiences, they are disposed to believe revealed propositions if given accurate relevant information (including a presentation of them as credible). The latter may far surpass their current information.

4. Responses to the objections

We can now reply to the objections facing IFS. We begin with the charge that Biblical and magisterial texts show that explicit Christian faith is necessary for salvation. In our view, the passages cited by Crean et al. prove too much. If the Bible teaches that salvation requires explicit faith, this undermines Aquinas’ suggestion that before Christ, people were saved through implicit faith. Equally, if Florence requires that all non-Catholics must be united to the Church before death to receive salvation, D’Costa’s theory of post-mortem salvation is false.

More importantly, none of these texts were written in contexts where the possibility of salvation through implicit faith was under immediate consideration. Accordingly, one can reasonably interpret them as teaching that Christian faith (which Dominus Iesus terms ‘theological’) is necessary for salvation, without denying that such faith may be implicit. The chief exception is the Holy Office’s judgement that explicit faith in the Incarnation and Trinity is required for baptism, even for those who are conscious but gravely ill.Footnote ⁶¹ However, this judgement concerns those (barely) capable of explicit Christian faith. It does not address the possibility of salvation through implicit Christian faith for those who cannot reach explicit faith. One might object that since the Holy Office describes explicit faith in the Incarnation and Trinity as strictly necessary for salvation (necessary by ‘necessity of means’), it implies that no-one can presently be saved without it. But this inference is false, since Scholastics commonly recognised that ‘necessity of means’ is not absolute. Suárez and de Lugo allowed that explicit faith in these mysteries is necessary for salvation qua ‘necessity of means’ but held that it is only absolutely required for those capable of explicit faith.Footnote ⁶²

Additionally, given our analysis of implicit faith as Scotist or Thomist tacit faith, we can explain why IFS does not contradict the principle that faith ‘comes from what is heard’. The appropriate presentation of revealed truth is a manifestation condition for the disposition which constitutes implicit faith. In a sense, therefore, implicit faith comes from hearing. But just as implicit faith consists in an unactualised disposition to believe, so it ‘comes from’ a hypothetical reception of the gospel. Critics might reply that implicit faith is only ‘ex auditu’ in an analogous sense. We respond that the Biblical dictum that ‘faith comes from what is heard’ must be applied analogously in different contexts by any adequate account of faith. In Romans 10, Paul is rhetorically asking how anyone can believe without hearing apostolic preaching in this life. Yet critics of IFS themselves maintain that one can attain salvific faith without such evangelism, via private or post-mortem revelation.

The second family of objections to IFS relies on the claim that implicit Christian faith must be grounded in explicit belief in the Church’s authority and/or practical commitment to Christian living. But as illustrated above, many forms of implicit belief do not require explicit beliefs and commitments, or even the possession of relevant linguistic concepts. In particular, Scotist tacit faith does not require possession of any explicit beliefs or commitments. Thomist tacit faith involves possession of some beliefs or experiences which appropriately dispose one to explicit belief in Christian revelation, but these beliefs or experiences need not be explicitly Christian.

Critics also urge that one cannot have a meaningful relationship with God/Christ unless one is a theist/Christian, since one cannot have interpersonal faith or friendship with someone unless one believes that they exist. This seems false, as philosophers have argued in response to John Schellenberg’s argument from ‘divine hiddenness’.Footnote ⁶³ The following example illustrates the possibility of having a personal relationship with someone, without believing that they exist:

Lastly, we emphasise that because we understand implicit faith as a disposition to explicit faith, under potentially remote circumstances, implicit faith need not produce distinctive behaviour in everyone who possesses it. Accordingly, we do not hold that implicit faith necessarily involves unconscious belief which should only be posited to explain the behaviour of non-Christians.

Finally, we should examine alternative models for the salvation of the unevangelised presented by critics of IFS. Here, our aim is modest. We welcome efforts to show that those who have not culpably rejected the gospel can be saved, and we do not claim that God cannot save people in these ways. Yet we argue that it is more fitting for God to justify non-Christians through implicit faith.

Crean et al. suggest that appropriately disposed non-Christians might encounter the gospel in Near Death Experiences. But this is doubly objectionable. Firstly, it multiplies miracles beyond necessity, making a claim which is inadequately supported by available evidence. To our knowledge, there is no indication that those who diligently follow natural law are especially likely to receive Christian NDE’s. Secondly, as Rahner argued, this theory implausibly makes the lives of those non-Christians relatively unimportant for the determination of their eternal destiny.Footnote ⁶⁵ This is because for Crean et al. such non-Christians do not receive an offer of sanctifying grace until they are at the point of death.

We find D’Costa’s suggestion that God allows people to respond to Christian revelation after death more convincing; it seems fitting that non-Christians are allowed to exercise explicit faith before receiving beatitude. Yet we depart from D’Costa in emphasising that those with implicit faith can receive justification in this life, in line with recent magisterial teaching. In Evangelii Gaudium (2013), para. 7, Pope Francis explains that ‘Non-Christians, by God’s gracious initiative, when they are faithful to their own consciences, can live “justified by the grace of God”, and thus be “associated to the paschal mystery of Jesus Christ”’.

By contrast, D’Costa is vague about whether non-Christians can be justified before death. On one hand, he denies their need for post-mortem ‘conversion’ and indicates that grace is present in their earthly lives.Footnote ⁶⁶ But he does not unequivocally embrace DiNoia’s suggestionFootnote ⁶⁷ that non-Christians can be justified before receiving post-mortem revelation.Footnote ⁶⁸ Whilst Bullivant appears more open to affirming that non-theists can be justified before death,Footnote ⁶⁹ it seems hard for any of these authors to adopt this position without either holding that one can be justified without faith or else embracing a role for implicit faith.

Moreover, Catholic theology holds that one can receive the grace imparted by a sacrament – including justification, bestowed through Baptism and Penance – before receiving that sacrament, provided that one has the required dispositions (i.e., the theological virtues and explicit or implicit desire for the sacrament).Footnote ⁷⁰ By parallel, it is plausible that one who possesses tacit Scotist or Thomist faith can be justified, if they meet the other requirements for salvation.Footnote ⁷¹

Lastly, we note that on Eleonore Stump’s reading of Aquinas, God immediately justifies those who cease to resist His ever-present offer of sanctifying grace.Footnote ⁷² Accordingly, since those with tacit faith and the other pre-requisites for salvation have ceased resistance, they too should be justified instantly. This position seems correct: Scripture describes God as a generous Father who runs to embrace his prodigal child when they are still on the road home (Luke 15:20). But this is not the case according to D’Costa’s post-mortem model of salvation, unless D’Costa grants that properly disposed non-Christians are already justified.

Some readers might reasonably regard the positions of DiNoia, D’Costa, and Bullivant as so close to our own that our defence of IFS constitutes a development of their views, rather than an alternative to them. Like us, D’Costa and Bullivant hold that the post-mortem salvation of non-Christians depends on their present practices or dispositions, and Bullivant and DiNoia allow that non-theists can be justified before death. We hope, therefore, that these authors would welcome our account of tacit faith as a way of understanding how appropriate dispositions to accept divine revelation are themselves a form of (implicit) faith. Our account would also allow them to explain how, whilst faith is the ‘foundation and root of all justification’, those with the relevant dispositions can be justified in this life.

Where we differ most clearly from DiNoia, D’Costa, and Bullivant is in our desire to rehabilitate the language of salvation through implicit faith, which they reject. But why do these authors criticise talk of ‘implicit faith’? We suspect that they are fundamentally concerned to reject the view, perhaps held by Rahner, that some or even many non-Christians can be saved through some mysterious form of unconscious belief that Christianity is true. Happily, our defence of IFS does not require that this is true.

5. Conclusion

We have not argued that God in fact saves many non-Christians through implicit faith. Unlike radical traditionalists, we disclaim exhaustive knowledge of God’s ways! However, we have employed Scholastic and analytic epistemology to show that recent objections to IFS fail. In both traditions, ‘implicit belief’ can describe various forms of non-occurrent belief. But we have shown that there is an available understanding of implicit faith which makes IFS plausible.

On our account, implicit faith is a disposition to explicit Christian faith in appropriate circumstances, which is grounded in the virtue of faith alone (Scotist tacit faith) or in that virtue together with the believer’s broader beliefs and experiences (Thomist tacit faith). Once implicit faith is understood in this way, many objections to IFS are undermined. Nevertheless, implicit faith orders people to their supernatural end in Christ: it is salvific.Footnote ⁷³