Patristic Research

What does Scripture say on the questions that divide Christian traditions, and how did the early church fathers read it? Every conclusion here links to its reasoning and sources.

Please read: this research was produced by an AI assistant. It is purely academic in nature, lacks the guidance of the Holy Spirit, and is not pastoral or ecclesial teaching. Test everything against Scripture (1 Thess 5:21) and with your church. Every conclusion links to its reasoning: see the method, the reasoning and source notes, and the project overview.

Three ways to look at the results

1 · Closeness to Scripture

Agreement with the grammatical-historical reading of the texts.

1 Anglican 91% 43/50 q

2 Lutheran 90% 43/50 q

3 General Baptist 86% 43/50 q

4 Reformed Baptist 85% 43/50 q

5 Presbyterian 84% 43/50 q

6 Oriental Orthodox 78% 43/50 q

7 Orthodox 78% 43/50 q

8 Anabaptist 75% 41/50 q

9 Catholic 75% 43/50 q

2 · Closeness to the fathers

Agreement with the patristic verdicts to c. 750, weighted by how early the evidence is.

1 Oriental Orthodox 90% 48/50 q

2 Orthodox 89% 48/50 q

3 Catholic 80% 48/50 q

4 Anglican 69% 49/50 q

5 Lutheran 67% 48/50 q

6 General Baptist 65% 49/50 q

7 Anabaptist 60% 47/50 q

8 Presbyterian 57% 49/50 q

9 Reformed Baptist 56% 49/50 q

3 · Your lens: weighted average

An optional, reader-adjustable lens, not the site's verdict. Default 50/50.

1 Oriental Orthodox 84% 48/50 q

2 Orthodox 83% 48/50 q

3 Anglican 80% 49/50 q

4 Lutheran 79% 48/50 q

5 Catholic 78% 48/50 q

6 General Baptist 75% 49/50 q

7 Reformed Baptist 71% 49/50 q

8 Presbyterian 71% 49/50 q

9 Anabaptist 68% 47/50 q

Scripture weight 0–100%: 50%

0% (fathers only)100% (Scripture only)

50% Scripture / 50% fathers

Confidence-weighted averages out of 4, over 14 topics and 50 questions; the number of questions each tradition is scored on shows on hover and on the topic pages. These summarise provisional research judgements. How the three lenses work · how each tradition weights authority · every score with its citation.

Per topic: Fathers (percent closeness; blank = not assessed)

Topic	Catholic	Orthodox	Oriental Orthodox	Lutheran	Anglican	Presbyterian	Reformed Baptist	General Baptist	Anabaptist
Justification	61	70	70	71	75	66	66	80	75
Baptism	71	100	100	71	100	39	40	40	30
Salvation: grace, free will, …	93	85	89	66	69	50	54	78	93
Eucharist	67	100	100	50	38	25	20	25	25
Afterlife: intermediate state, …	91	94	97	79	73	73	73	73	73
Atonement	88	60	88	82	88	88	88	88	77
Christology	100	100	82	91	91	91	91	91	75
Church authority and the papacy	38	100	87	74	74	49	49	74	74
Icons and images (through Nicaea …	90	90	75	65	53	53	53	53	53
Original sin	87	92	92	82	87	82	82	87	87
The other sacraments and rites	64	84	89	56	65	36	36	73	47
Relics	100	100	100	25	16	16	16	16	16
Scripture and tradition: canon and …	67	94	94	75	94	75	67	86	56
The Trinity and the filioque	87	93	93	87	87	87	87	87	100

Per topic: Your lens (weighted average) (percent closeness; blank = not assessed)

Topic	Catholic	Orthodox	Oriental Orthodox	Lutheran	Anglican	Presbyterian	Reformed Baptist	General Baptist	Anabaptist
Justification	63	65	65	84	86	77	77	83	68
Baptism	79	97	97	76	100	51	57	57	43
Salvation: grace, free will, …	90	78	80	78	80	68	72	79	82
Eucharist	74	95	90	70	56	43	40	43	35
Afterlife: intermediate state, …	89	89	94	87	84	84	84	84	84
Atonement	81	65	84	89	89	89	89	89	79
Christology	100	100	80	95	95	95	95	95	75
Church authority and the papacy	37	95	89	82	82	57	57	82	82
Icons and images (through Nicaea …	68	68	60	75	66	66	66	71	71
Original sin	91	86	86	91	94	91	91	87	91
The other sacraments and rites	60	84	87	65	71	52	52	79	57
Relics	90	90	90	43	38	38	38	38	38
Scripture and tradition: canon and …	59	76	76	85	97	88	80	93	66
The Trinity and the filioque	85	97	97	89	89	89	89	89	100

Per topic: Scripture (percent closeness; blank = not assessed)

Topic	Catholic	Orthodox	Oriental Orthodox	Lutheran	Anglican	Presbyterian	Reformed Baptist	General Baptist	Anabaptist
Justification	66	60	60	97	97	88	88	86	61
Baptism	88	94	94	81	100	63	75	75	56
Salvation: grace, free will, …	87	71	71	91	91	86	91	80	71
Eucharist	80	90	80	90	75	60	60	60	45
Afterlife: intermediate state, …	88	83	92	94	94	94	94	94	94
Atonement	75	70	80	95	90	90	90	90	80
Christology	100	100	79	100	100	100	100	100	75
Church authority and the papacy	35	90	90	90	90	65	65	90	90
Icons and images (through Nicaea …	45	45	45	85	80	80	80	90	90
Original sin	95	81	81	100	100	100	100	86	95
The other sacraments and rites	56	84	84	74	78	68	68	85	68
Relics	80	80	80	60	60	60	60	60	60
Scripture and tradition: canon and …	50	58	58	94	100	100	92	100	75
The Trinity and the filioque	83	100	100	92	92	92	92	92	100

The research at a glance

For each topic: what Scripture says, what the fathers (to about AD 750) say, and where the two agree or diverge. This overview is generated from the research data, so new topics appear here as they are added. How much weight to give Scripture against the fathers or church tradition is left to you: see Scripture and tradition for each tradition’s view of authority and both measures side by side.

Justification

Scripture: Paul’s word ‘justify’ is a legal declaration (Rom 4:5; 8:33): works are excluded as the ground of acceptance (Rom 4:4–5), and James 2 is about faith shown to be alive, not a second ground.
The fathers: The fathers agree no works come before being justified and that it is by grace, but they speak of being declared righteous and being made righteous together, tied to baptism.
Agree / diverge: Agree that grace, not works, is the ground; diverge on whether justification is only a declaration or also an inner renewal.

Go deeper: Topic page → Reasoning → Sources: justin-martyr-s2, clement-of-rome-s1, augustine-s1 · all 6 questions

Baptism

Scripture: Several texts tie new birth and forgiveness to baptism, with faith assumed (John 3:5; Acts 2:38; Titus 3:5); the word and the burial imagery favour immersion; no text explicitly settles infant baptism.
The fathers: The fathers teach baptism as the ordinary means of new birth, attest infant baptism from about AD 200 (some advised delay), and practise threefold immersion.
Agree / diverge: Largely agree on what baptism does; the fathers add a settled practice (infants, threefold immersion) where Scripture gives no explicit command.

Go deeper: Topic page → Reasoning → Sources: justin-martyr-bap-s1, cyprian-bap-s1, didache-bap-s1 · all 4 questions

Salvation: grace, free will, predestination, perseverance

Scripture: Coming to faith is God’s gift (John 6:44; Phil 1:29); Scripture holds real choice and bondage to sin together, favours election by God’s purpose (Rom 9:11–16), and pairs promises of preservation with real warnings.
The fathers: The Western fathers and councils say grace comes first (Cassian and some Eastern writers give the will a larger opening role); all affirm free will; they were split on predestination (Augustine against an earlier foreknowledge line) and taught that believers can fall away.
Agree / diverge: Agree that grace comes first; diverge on predestination, where the fathers were divided among themselves.

Go deeper: Topic page → Reasoning → Sources: augustine-sal-s1, justin-martyr-sal-s1, augustine-sal-s2 · all 4 questions

Eucharist

Scripture: ‘This is my body’ and 1 Cor 10–11 read most naturally as real presence; Hebrews stresses that Christ’s sacrifice is once for all; Scripture does not explain how the bread and wine relate to his body.
The fathers: The fathers hold Christ’s real presence, call the Eucharist a sacrifice, and speak of a real change without defining how.
Agree / diverge: Agree on real presence; diverge in emphasis on sacrifice, where Hebrews’ ‘once for all’ sits alongside the fathers’ sacrificial language.

Go deeper: Topic page → Reasoning → Sources: ignatius-euc-s1, didache-euc-s1, ambrose-euc-s1 · all 3 questions

Afterlife: intermediate state, purification, prayers for the dead, resurrection, final state

Scripture: Scripture teaches a conscious state after death (Luke 23:43; Phil 1:23), bodily resurrection (1 Cor 15), and eternal punishment (Matt 25:46); it neither commands nor forbids prayer for the dead in the shared canon, and gives no clear basis for purification after death.
The fathers: The fathers teach a conscious intermediate state, pray for the dead from about AD 200, teach purification after death (from Augustine, anticipated in Perpetua’s vision), affirm resurrection of the flesh, and hold eternal punishment as the consensus.
Agree / diverge: Agree on the intermediate state, resurrection and final judgement; diverge on prayers for the dead and purification, which the fathers practise without clear Scripture basis.

Go deeper: Topic page → Reasoning → Sources: tertullian-aft-s1, tertullian-aft-s2, augustine-aft-s2 · all 5 questions

Atonement

Scripture: Scripture speaks of Christ’s victory over the devil (Col 2:15), of Christ as the new Adam (Rom 5), and explicitly of substitution with a penal element (Isa 53; Gal 3:13; Rom 3:25–26).
The fathers: The fathers hold victory, recapitulation (Christ as new Adam) and substitution together, without later honour-satisfaction or explicit wrath-on-the-Son language.
Agree / diverge: Broadly agree on the range of pictures; diverge mainly in how sharply the penal element is stated.

Go deeper: Topic page → Reasoning → Sources: irenaeus-atn-s2, irenaeus-atn-s1, justin-martyr-atn-s1 · all 4 questions

Christology

Scripture: The Word became flesh (John 1:14): one person, fully God (Col 2:9) and fully man, like us in all things but sin (Heb 4:15), with a human will submitted to the Father (Luke 22:42).
The fathers: From Ignatius on, Christ is ‘God existing in flesh’; after 451 the formula splits between Chalcedon’s ’two natures’ and the Cyrilline ‘one incarnate nature’; Constantinople III confesses two wills.
Agree / diverge: Agree on the substance; Scripture supports two wills.

Go deeper: Topic page → Reasoning → Sources: ignatius-chr-s1, gregory-nazianzen-chr-s1 · all 2 questions

Church authority and the papacy

Scripture: Peter leads the apostles and receives the keys (Matt 16; John 21), yet is corrected by Paul (Gal 2) and calls himself a ‘fellow elder’ (1 Pet 5:1); nothing is said of successors or Rome.
The fathers: Clement, Ignatius and Irenaeus honour the Roman church as a guardian of apostolic tradition; councils treat sees’ privileges as customary; Gregory the Great rejects ‘universal bishop’.
Agree / diverge: Agree: a real Petrine and Roman prominence, but no universal jurisdiction or infallibility.

Go deeper: Topic page → Reasoning → Sources: clement-of-rome-pap-s1, cyprian-pap-s1 · all 2 questions

Icons and images (through Nicaea II, 787)

Scripture: God commanded some images in worship spaces (the cherubim, Exod 25), but forbids representing the invisible God (Deut 4) and bowing to images (Exod 20:5).
The fathers: Early evidence is mixed and partly hostile (Epiphanius); the honour-not-worship case for venerating icons appears late (7th–8th centuries) and was settled at Nicaea II in 787.
Agree / diverge: Diverge: the later patristic settlement (787) goes beyond what Scripture and the earliest fathers support.

Go deeper: Topic page → Reasoning → Sources: epiphanius-ico-s1, nicaea-ii-ico-s1, epiphanius-ico-s1 · all 3 questions

Original sin

Scripture: Death came to all through Adam (Rom 5:12–21), with some inherited condemnation (Rom 5:18–19; Eph 2:3), not only mortality.
The fathers: All the fathers affirm a real fall passing death and corruption to all; Greek fathers stress mortality, Latin fathers from Cyprian speak of another’s sin remitted in infant baptism, which Augustine systematized as inherited guilt.
Agree / diverge: Agree on a real fall; Scripture’s ‘condemnation for all’ sits closer to the Western fathers’ emphasis than the Eastern one.

Go deeper: Topic page → Reasoning → Sources: irenaeus-osn-s1, cyprian-osn-s1, augustine-osn-s2 · all 4 questions

The other sacraments and rites

Scripture: Acts shows apostles laying hands on the baptized for the Spirit; John 20:23 gives authority to forgive sins; James 5 commands elders to anoint the sick; marriage is a ‘mystery’ of Christ and the church.
The fathers: From Tertullian, anointing and laying on of hands follow baptism; penance is public confession and reconciliation; anointing of the sick appears by the 4th century; Augustine calls marriage an indissoluble sacramentum.
Agree / diverge: Mostly agree: the rites have biblical roots; later systems (seven sacraments, private enumeration, deathbed-only anointing) go beyond both.

Go deeper: Topic page → Reasoning → Sources: tertullian-osr-s1, tertullian-osr-s3, chrysostom-osr-s1 · all 4 questions

Relics

Scripture: Scripture records miracles through Elisha’s bones and Paul’s cloths (2 Kings 13:21; Acts 19:11–12) but gives no instruction to honour relics, and refuses even honorific bowing to an apostle or angel (Acts 10:25–26; Rev 19:10).
The fathers: From about AD 155 the fathers honoured martyrs’ remains (universal by the 4th century), explicitly distinguished this from worship from the late 4th century (Jerome), reported miracles, and rejected the one early objector (Vigilantius).
Agree / diverge: Agree that God has worked through relics; diverge on venerating them, which the fathers practise and Scripture neither commands nor models.

Go deeper: Topic page → Reasoning → Sources: martyrdom-of-polycarp-rel-s1, jerome-rel-s1, augustine-rel-s1 · all 4 questions

Scripture and tradition: canon and authority

Scripture: Scripture is God-breathed and equips fully (2 Tim 3:16–17); apostolic traditions in 2 Thess 2:15 are the apostles’ own teaching; the church teaches with authority but under the gospel (Acts 17:11; Gal 1:8).
The fathers: The fathers make Scripture the supreme proof of doctrine, read within the apostolic rule of faith kept by the churches; Basil honours unwritten customs; the canon lists differ East and West.
Agree / diverge: Largely agree: Scripture supreme, interpreted in the church; neither measure supports a second co-equal source of doctrine or an infallible single office.

Go deeper: Topic page → Reasoning → Sources: irenaeus-sct-s1, athanasius-sct-s3, irenaeus-sct-s3 · all 3 questions

The Trinity and the filioque

Scripture: Father, Son and Spirit are named together as the one God (Matt 28:19); the Spirit ‘proceeds from the Father’ and is sent by the Son (John 15:26).
The fathers: The fathers confess one God in three co-equal persons; on the Spirit’s procession the East says ‘from the Father through the Son’, Augustine ‘from the Father principally and the Son’.
Agree / diverge: Agree on the Trinity; on the filioque Scripture’s wording matches the Eastern formula.

Go deeper: Topic page → Reasoning → Sources: ignatius-tri-s1, constantinople-i-tri-s1 · all 2 questions

How to go deeper

Every topic is built in three layers, and each links to the one beneath it:

Topic page: the research questions, a verdict for each with a confidence level, and how nine traditions (Catholic, Orthodox, Oriental Orthodox, Lutheran, Anglican, Presbyterian, Reformed Baptist, General Baptist and Anabaptist) developed after 750.
Reasoning: numbered steps for each verdict, with the weighing made explicit (which readings were considered and why one was preferred).
Sources: notes on each father and council, citing the exact passage, and exegesis of the key Scripture texts in Greek and Hebrew.

New to the vocabulary? Start with the glossary. For how the closeness measures are calculated, see the method and every score with its citation. The project README and conventions describe the sources and format.