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.
In the faith? How fully each tradition holds the first-order doctrines, the gospel core. All 16 first-order doctrines researched.
- Catholic holds all 98% 33/33 first-order cells
- Orthodox holds with qualifications 97% 33/33 first-order cells because of F12.1 (Salvation by grace through faith in Christ) 2/4
- Oriental Orthodox holds with qualifications 98% ⚠ 32/33 first-order cells because of F12.1 (Salvation by grace through faith in Christ) 2/4
- Lutheran holds all 99% 33/33 first-order cells
- Anglican holds all 99% 33/33 first-order cells
- Presbyterian holds all 99% 33/33 first-order cells
- Reformed Baptist holds all 99% 32/33 first-order cells
- General Baptist holds all 98% 33/33 first-order cells
- Anabaptist holds with qualifications 93% 32/33 first-order cells because of F05.2 (Virgin birth and incarnation) 2/4
Weakest-link rule: the band depends on the lowest first-order question, not an average. If every scored first-order question scores at least 3/4 against Scripture, the band is holds all. If any scores below 3/4, it is holds with qualifications, and the questions responsible are named. If any scores 1/4 or below, it is denies one or more. The percentage is the mean and doesn't decide the band, so a lower average can still be "holds all". This marks recognition, not rank. Method · under each tradition's own first-order list.
Most correct: three ways to look at the results
1 · Closeness to Scripture
The site's primary measure: agreement with the grammatical-historical reading of the texts.
2 · Closeness to the fathers
Agreement with the patristic verdicts to c. 750, weighted by how early the evidence is.
3 · Your lens: weighted average
Set how much Scripture counts against the fathers. This is your lens, not the site's verdict.
Each ranking averages the 67 researched doctrines (148 questions), weighting first-order doctrines 3, second-order 2 and third-order 1; each doctrine counts once, however many questions it has. Faded rows rest on fewer than half the doctrines. Each name shows its coverage: cells scored out of those scorable, by tier (I/II/III; the blended lens shows Scripture coverage). ⚠ marks coverage more than 10 points below the median (93% for Scripture, 90% for the fathers): a ranking based on fewer cells is less certain. How the tiers and lenses work · rankings under each tradition's own tiers · every score with its citation.
Per doctrine: Fathers (percent closeness; blank = not assessed)
Per doctrine: Your lens (weighted average) (percent closeness; blank = not assessed)
Per doctrine: Scripture (percent closeness; blank = not assessed)
The map of doctrines
Christian doctrines are sorted into three tiers (theological triage): first-order doctrines are essential to the gospel, second-order ones divide churches but not salvation, and third-order ones are debated within a single church. Each card is one doctrine; the greyed-out ones are not yet researched, so you can see how much of the map is covered. Cards marked tier contested are ones some traditions place in a different tier.
First-order doctrines weight 3
The Trinity
One God in three co-equal, co-eternal persons.
F02Deity of Christ
The Son is true God, of one substance with the Father (Nicaea).
F03True humanity of Christ
The Son truly took full human nature (against Docetism and Apollinarianism).
F04One person, God and man
Christ is one person, true God and true man, without confusion or division.
F05Virgin birth and incarnation
Conceived by the Holy Spirit, born of the Virgin Mary.
F06Deity and personhood of the Holy Spirit
'The Lord, the giver of life' (381).
F07Creation out of nothing
God alone is eternal; all else is created and good.
F08Sin and the need for grace
All are sinners, cannot save themselves, and need grace (against Pelagius).
F09Christ's saving death
Christ died for our sins (1 Cor 15:3) and his death saves; how it saves is S20 and T6.
F10Bodily resurrection of Christ
Christ was truly raised in the body.
F11Ascension and session
Christ ascended and reigns.
F12Salvation by grace through faith in Christ
Salvation is God's gift in Christ, not earned.
F13Return of Christ and final judgement
He will come again to judge the living and the dead.
F14General resurrection and eternal life
The resurrection of the body and the life everlasting.
F15Authority and truthfulness of Scripture
Scripture is God's inspired word.
F16One holy catholic and apostolic Church
The Church confessed in the creeds.
Second-order doctrines weight 2
Nature of justification
Forensic imputation or infused/transformative righteousness; faith alone?
S02Baptism: subjects
Infants, or believers only.
S03Baptism: effect
Regeneration, or sign and seal; necessity.
S04Eucharist: presence
Transubstantiation, mystery, sacramental union, spiritual presence, memorial.
S05Eucharist: sacrifice
Is the Mass or Liturgy a sacrifice?
S06Number and nature of sacraments
Seven, two, or ordinances; the other rites.
S07Scripture and tradition
Sola scriptura, or Scripture with tradition and magisterium; canon.
S08Papal primacy and infallibility
The Petrine office and Vatican I.
S09Church government
Episcopal, presbyterian, congregational; apostolic succession.
S10Ordination to the presbyterate
Classic positions on who may be ordained.
S11Predestination and election
Unconditional or conditional; free choice.
S12Extent of the atonement
Particular or general.
S13Perseverance of the saints
Can a true believer finally fall away?
S14Original sin: guilt or corruption
Inherited guilt, or inherited mortality and corruption.
S15Filioque
The procession of the Holy Spirit.
S16Chalcedonian and miaphysite wording
'In two natures' or 'one incarnate nature'; two wills.
S17Purgatory and prayers for the dead
Purification after death; praying for the departed.
S18Invocation of saints and Marian dogmas
Asking saints to pray; Immaculate Conception, Assumption.
S19Veneration of icons and relics
Honouring or rejecting images and relics.
S20Penal substitution and satisfaction
Christ bore the penalty or satisfied divine justice in our place.
S21Divine simplicity and impassibility
God without parts or passions; essence and energies.
S22Marriage, divorce and remarriage
May a marriage be dissolved for adultery, with remarriage?
S23Nature of saving faith
Assent, trust, and the place of love in justifying faith.
S24Merit and good works
Whether the works of the justified merit eternal life; whether works are necessary for salvation.
Third-order doctrines weight 1
Millennium
Amillennial, premillennial, postmillennial.
T02Timing of end-times events
Tribulation and rapture questions, preterism.
T03Age of the earth and days of creation
Literal days or other readings.
T04Mode of baptism
Immersion, pouring, sprinkling.
T05Frequency of communion
Weekly, monthly, quarterly.
T06Atonement models beyond the core
Ransom, Christus Victor, recapitulation: emphasis and models.
T07Order of decrees
Supra- or infralapsarianism.
T08Origin of the soul
Traducianism or creationism.
T09Intermediate state
The soul's state between death and resurrection.
T10Final punishment
Eternal conscious punishment or annihilation.
T11Universal restoration as a hope
Gregory of Nyssa's hope, held as hope not dogma.
T12Spiritual gifts
Cessation or continuation.
T13Sabbath and Lord's Day
Strict sabbatarian or not.
T14Regulative or normative worship
Exclusive psalmody, instruments.
T15Liturgical calendar
Observing feasts and seasons.
T16Clerical celibacy
Discipline, not dogma.
T17Fasting rules
Practice and discipline.
T18Theosis vocabulary
Deification language or union with Christ.
T19Image of God
Is the image lost or marred; original righteousness.
T20Sword, magistracy and oaths
May Christians bear the sword, hold office and swear oaths?
T21Women's ministries beyond the presbyterate
Deaconesses; women baptizing and teaching.
T22Israel and the Church
Future conversion of Israel; the end of the ceremonial law.
T23Admission to the Lord's Table
Who may receive: the baptized, the examined, infants?
T24Liberty of conscience
Church precepts and the conscience; coercion in religion.
T25Communion in both kinds; reservation and adoration
The cup for the laity; reserving and adoring the consecrated elements.
T26Church discipline and shunning
Who excommunicates; avoiding the excommunicated.
T27The law in the Christian life
Whether the moral law binds Christians; whether the justified keep it perfectly.
Shaped by
How much of each tradition's own confessional emphasis falls on first-, second- and third-order doctrines. Each doctrine gets 0–2 from the tradition's confessions, and each value is cited. This describes the tradition; it does not grade it. Ties among the top three are listed in tier order (S before T), then by number.
The research at a glance
For each researched doctrine: what Scripture says, what the fathers (to about AD 750) say, and where they agree or diverge. Generated from the research data, so new doctrines 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 where tiers are contested for how the rankings change under each tradition’s own tiers.
First-order doctrines 16 of 16 researched · all 16
F01 The Trinity
- Scripture
- Father, Son and Spirit are named together as the one God (Matt 28:19; 2 Cor 13:14).
- The fathers
- From Ignatius to the councils: one God in three co-equal persons.
- Agree / diverge
- Fully agree.
Go deeper: Doctrine page → Reasoning → Sources: ignatius-tri-s1, tertullian-f01x-s1 · all 2 questions
F02 Deity of Christ
- Scripture
- Jesus is called God (John 1:1; 20:28; Titus 2:13) and is worshipped.
- The fathers
- From Ignatius (‘our God, Jesus Christ’) to Nicaea, the Son is true God.
- Agree / diverge
- Fully agree.
Go deeper: Doctrine page → Reasoning → Sources: ignatius-f02-s1, ignatius-f02-s2 · all 2 questions
F03 True humanity of Christ
- Scripture
- The Word became flesh, like us in every way except sin (John 1:14; Heb 2:17; 4:15).
- The fathers
- From Ignatius (’truly born, and ate and drank’) to Gregory (’not assumed, not healed’), Christ is fully human.
- Agree / diverge
- Fully agree.
Go deeper: Doctrine page → Reasoning → Sources: ignatius-f03-s1, gregory-nazianzen-f03-s2 · all 2 questions
F04 One person, God and man
- Scripture
- One subject is truly God and truly man (John 1:14; Col 2:9; Heb 4:15).
- The fathers
- One person, fully God and fully man; after 451 the wording splits between ’two natures’ and ‘one incarnate nature’.
- Agree / diverge
- Agree on substance.
Go deeper: Doctrine page → Reasoning → Sources: ignatius-chr-s1, ephesus-f04x-s1 · all 2 questions
F05 Virgin birth and incarnation
- Scripture
- Matthew and Luke both say Jesus was conceived by the Holy Spirit in the virgin Mary.
- The fathers
- Ignatius and Justin already confess it.
- Agree / diverge
- Fully agree.
Go deeper: Doctrine page → Reasoning → Sources: ignatius-f05-s1, ignatius-f05-s3 · all 2 questions
F06 Deity and personhood of the Holy Spirit
- Scripture
- The Spirit wills, teaches and can be lied to, and lying to him is lying to God (Acts 5:3–4).
- The fathers
- The creed of 381: the Spirit is ’the Lord and Giver of life’, worshipped with the Father and the Son.
- Agree / diverge
- Fully agree.
Go deeper: Doctrine page → Reasoning → Sources: constantinople-i-f06-s1, irenaeus-f06-s1 · all 2 questions
F07 Creation out of nothing
- Scripture
- Everything was made through the Word (John 1:3), not from pre-existing matter (Heb 11:3).
- The fathers
- From Hermas on: God ‘made all things out of nothing’.
- Agree / diverge
- Fully agree.
Go deeper: Doctrine page → Reasoning → Sources: hermas-f07-s1, irenaeus-f07-s2 · all 2 questions
F08 Sin and the need for grace
- Scripture
- All have sinned (Rom 3:23); no one comes to Christ unless drawn (John 6:44).
- The fathers
- A real fall passed death and corruption to all; the Western councils say grace precedes even the beginning of faith.
- Agree / diverge
- Agree.
Go deeper: Doctrine page → Reasoning → Sources: irenaeus-osn-s1, augustine-sal-s1, augustine-f08x-s1 · all 3 questions
F09 Christ's saving death
- Scripture
- ‘Christ died for our sins’ is ‘of first importance’ (1 Cor 15:3).
- The fathers
- From Clement and Ignatius: Christ’s blood was shed ‘for our salvation’.
- Agree / diverge
- Fully agree.
Go deeper: Doctrine page → Reasoning → Sources: clement-of-rome-f09-s1, chrysostom-f09-s1 · all 2 questions
F10 Bodily resurrection of Christ
- Scripture
- The risen Christ has ‘flesh and bones’ (Luke 24:39), and without the resurrection faith is futile (1 Cor 15:17).
- The fathers
- Ignatius: ‘after His resurrection also He was still possessed of flesh’.
- Agree / diverge
- Fully agree.
Go deeper: Doctrine page → Reasoning → Sources: ignatius-f10-s1, ignatius-f10-s2 · all 2 questions
F11 Ascension and session
- Scripture
- Christ was taken up and is seated at God’s right hand (Acts 1; Eph 1:20).
- The fathers
- Polycarp and Irenaeus confess his ascension ‘in the flesh’ and his throne at the Father’s right hand.
- Agree / diverge
- Fully agree.
Go deeper: Doctrine page → Reasoning → Sources: polycarp-f11-s1, clement-of-rome-f11-s1 · all 2 questions
F12 Salvation by grace through faith in Christ
- Scripture
- Salvation is a gift, not a wage (Rom 4:4–5; Eph 2:8–9).
- The fathers
- No works come before being justified; it is God’s free grace.
- Agree / diverge
- Agree.
Go deeper: Doctrine page → Reasoning → Sources: clement-of-rome-s1, ignatius-f12x-s1 · all 2 questions
F13 Return of Christ and final judgement
- Scripture
- Christ will come again visibly and judge all (Acts 1:11; Matt 25:31–46).
- The fathers
- The Didache and Polycarp expect him ‘coming upon the clouds’ as ‘Judge of the living and the dead’.
- Agree / diverge
- Fully agree.
Go deeper: Doctrine page → Reasoning → Sources: didache-f13-s1, didache-f13-s2 · all 2 questions
F14 General resurrection and eternal life
- Scripture
- The dead will be raised bodily (1 Cor 15; John 5:28–29).
- The fathers
- The fathers confess the resurrection of the same flesh.
- Agree / diverge
- Fully agree.
Go deeper: Doctrine page → Reasoning → Sources: tertullian-aft-s3, irenaeus-f14x-s1 · all 2 questions
F15 Authority and truthfulness of Scripture
- Scripture
- Scripture is ‘God-breathed’ and ‘cannot be broken’ (2 Tim 3:16; John 10:35).
- The fathers
- Clement: ’the true utterances of the Holy Spirit’; Augustine: its authors were ‘completely free from error’.
- Agree / diverge
- Fully agree.
Go deeper: Doctrine page → Reasoning → Sources: clement-of-rome-f15-s1, irenaeus-f15-s2 · all 2 questions
F16 One holy catholic and apostolic Church
- Scripture
- There is one body of Christ, built on the apostles (Eph 2:20; 4:4).
- The fathers
- Ignatius first speaks of ’the Catholic Church’; Cyprian: ’no one can have God for his Father who has not the Church for his mother'.
- Agree / diverge
- Agree on the confession; the fathers tie it more closely to the visible communion.
Go deeper: Doctrine page → Reasoning → Sources: ignatius-f16-s1, nicaea-i-f16-s1 · all 2 questions
Second-order doctrines 24 of 24 researched · all 24
S01 Nature of justification tier contested
- Scripture
- Paul’s ‘justify’ is a legal declaration; works are excluded as its ground (Rom 4:4–5).
- The fathers
- The fathers hold declaring and making righteous together, tied to baptism.
- Agree / diverge
- Partly diverge.
Go deeper: Doctrine page → Reasoning → Sources: justin-martyr-s2, augustine-s1, john-of-damascus-s1 · all 5 questions
S02 Baptism: subjects tier contested
- Scripture
- No text explicitly commands or forbids infant baptism.
- The fathers
- Infant baptism is attested from about AD 200; some fathers advised delay.
- Agree / diverge
- Fathers settle what Scripture leaves open.
Go deeper: Doctrine page → Reasoning → Sources: cyprian-bap-s1, cyprian-s02x-s1 · all 2 questions
S03 Baptism: effect
- Scripture
- Several texts tie new birth and forgiveness to baptism (John 3:5; Acts 2:38; Titus 3:5).
- The fathers
- Baptism is the ordinary means of regeneration; martyrdom is an exception to its necessity.
- Agree / diverge
- Largely agree.
Go deeper: Doctrine page → Reasoning → Sources: justin-martyr-bap-s1, cyril-of-jerusalem-bap-s1 · all 2 questions
S04 Eucharist: presence tier contested
- Scripture
- ‘This is my body’ (Mark 14:22); the bread is a participation in Christ’s body (1 Cor 10:16).
- The fathers
- A real, objective presence; the mode was not defined.
- Agree / diverge
- Agree on real presence.
Go deeper: Doctrine page → Reasoning → Sources: ignatius-euc-s1, ambrose-euc-s1 · all 2 questions
S05 Eucharist: sacrifice
- Scripture
- Christ was offered once for all (Heb 10:10–14).
- The fathers
- The fathers call the Eucharist a true sacrifice (Mal 1:11), without later propitiatory precision.
- Agree / diverge
- Partly diverge.
Go deeper: Doctrine page → Reasoning → Sources: didache-euc-s1, didache-s05x-s1 · all 2 questions
S06 Number and nature of sacraments
- Scripture
- Acts shows laying on of hands; James 5 commands anointing the sick.
- The fathers
- The rites existed early; seven sacraments as a system came later.
- Agree / diverge
- Mostly agree.
Go deeper: Doctrine page → Reasoning → Sources: tertullian-osr-s1, tertullian-osr-s3, chrysostom-osr-s1 · all 4 questions
S07 Scripture and tradition
- Scripture
- Scripture is God-breathed and sufficient (2 Tim 3:16–17).
- The fathers
- Scripture is the supreme proof, read within the rule of faith; canons differ East and West.
- Agree / diverge
- Largely agree.
Go deeper: Doctrine page → Reasoning → Sources: irenaeus-sct-s1, athanasius-sct-s3, irenaeus-sct-s3 · all 3 questions
S08 Papal primacy and infallibility tier contested
- Scripture
- Peter led the apostles but was corrected and was a fellow elder (Gal 2; 1 Pet 5:1).
- The fathers
- Rome had a primacy of honour; universal jurisdiction is absent; Gregory the Great rejected ‘universal bishop’.
- Agree / diverge
- Agree.
Go deeper: Doctrine page → Reasoning → Sources: clement-of-rome-pap-s1, cyprian-pap-s1 · all 2 questions
S09 Church government tier contested
- Scripture
- In the New Testament ‘bishop’ and ’elder’ name one office, held by several men in each church (Acts 20:17, 28; Titus 1:5–7).
- The fathers
- Clement attests succession; Ignatius already has one bishop over presbyters and deacons; Jerome later says bishops and presbyters were originally the same.
- Agree / diverge
- Partly diverge: the fathers quickly adopt a single bishop; Scripture shows plural elder-bishops.
Go deeper: Doctrine page → Reasoning → Sources: clement-of-rome-s09-s1, nicaea-i-s09-s1 · all 2 questions
S10 Ordination to the presbyterate
- Scripture
- Paul restricts the teaching and ruling office to men (1 Tim 2:12; 3:2); Phoebe serves as a deacon (Rom 16:1).
- The fathers
- No father admits women to the priesthood; deaconesses existed in parts of the East.
- Agree / diverge
- Agree.
Go deeper: Doctrine page → Reasoning → Sources: tertullian-s10-s1, nicaea-i-s10-s2 · all 2 questions
S11 Predestination and election
- Scripture
- Election rests on God’s purpose (Rom 9:11–16; Eph 1:5).
- The fathers
- Free choice is universally affirmed; predestination is split between Augustine and the earlier foreknowledge view.
- Agree / diverge
- Partly diverge.
Go deeper: Doctrine page → Reasoning → Sources: justin-martyr-sal-s1, augustine-sal-s2 · all 2 questions
S12 Extent of the atonement tier contested
- Scripture
- Scripture says Christ died for his sheep and church, and also ‘for all’ and ’the whole world’ (1 John 2:2).
- The fathers
- The fathers say Christ suffered ‘on behalf of all’; none in our sources limits the atonement to the elect.
- Agree / diverge
- Scripture has texts for both; the fathers lean universal.
Go deeper: Doctrine page → Reasoning → Sources: athanasius-s12-s1, chrysostom-s12-s1 · all 2 questions
S13 Perseverance of the saints
- Scripture
- Scripture pairs promises of preservation with real warnings.
- The fathers
- The fathers taught that the regenerate can fall away.
- Agree / diverge
- Partly diverge.
Go deeper: Doctrine page → Reasoning → Sources: augustine-sal-s3, augustine-s13x-s1 · all 2 questions
S14 Original sin: guilt or corruption
- Scripture
- Through one man sin and death came to all (Rom 5:12–19).
- The fathers
- East: inherited corruption and death; West: also inherited guilt (Augustine).
- Agree / diverge
- Emphasis differs.
Go deeper: Doctrine page → Reasoning → Sources: cyprian-osn-s1, augustine-osn-s2, chrysostom-osn-s1 · all 3 questions
S15 Filioque
- Scripture
- The Spirit ‘proceeds from the Father’ and is sent by the Son (John 15:26).
- The fathers
- East: from the Father through the Son; Augustine: also from the Son.
- Agree / diverge
- Scripture matches the Eastern wording.
Go deeper: Doctrine page → Reasoning → Sources: constantinople-i-tri-s1, ephesus-s15x-s1 · all 2 questions
S16 Chalcedonian and miaphysite wording tier contested
- Scripture
- Scripture teaches one Christ fully God and man, but uses neither nature formula; Gethsemane shows a human will.
- The fathers
- Chalcedon vs the Cyrilline formula split after 451; Constantinople III confesses two wills.
- Agree / diverge
- Formula open; two wills supported.
Go deeper: Doctrine page → Reasoning → Sources: chalcedon-chr-s1, gregory-nazianzen-chr-s1 · all 2 questions
S17 Purgatory and prayers for the dead
- Scripture
- Scripture gives no clear basis for purgatory or prayers for the dead (2 Macc 12 is deuterocanonical).
- The fathers
- Prayers for the dead from about 200; purification after death from Augustine.
- Agree / diverge
- Diverge.
Go deeper: Doctrine page → Reasoning → Sources: tertullian-aft-s2, augustine-aft-s2 · all 2 questions
S18 Invocation of saints and Marian dogmas tier contested
- Scripture
- The departed saints are alive and the martyrs pray (Rev 6:10), but Scripture never shows anyone asking them for prayer; it is silent on Mary’s conception and end.
- The fathers
- The martyrs were honoured from the 2nd century and their intercession sought in the liturgy by the 4th; Mary’s perpetual virginity was the consensus by then; the Marian dogmas are later.
- Agree / diverge
- Diverge: the practices are early but post-biblical; the Marian dogmas lack both.
Go deeper: Doctrine page → Reasoning → Sources: martyrdom-of-polycarp-s18-s1, protevangelium-s18-s1, augustine-s18-s1 · all 3 questions
S19 Veneration of icons and relics
- Scripture
- Scripture permits some made images but forbids bowing to them (Exod 20:5).
- The fathers
- Relics were honoured from about 155; icons were settled only in 787, after early opposition.
- Agree / diverge
- Diverge.
Go deeper: Doctrine page → Reasoning → Sources: martyrdom-of-polycarp-rel-s1, jerome-rel-s1, augustine-rel-s1 · all 7 questions
S20 Penal substitution and satisfaction
- Scripture
- Christ bore our sins in our place (Isa 53; 2 Cor 5:21; 1 Pet 2:24).
- The fathers
- Substitution is widely present; the satisfaction of God’s law, not honour-satisfaction.
- Agree / diverge
- Largely agree.
Go deeper: Doctrine page → Reasoning → Sources: justin-martyr-atn-s1, athanasius-atn-s1 · all 2 questions
S21 Divine simplicity and impassibility
- Scripture
- Scripture says God does not change like a man and that Christ suffered in the flesh; it never defines simplicity, which is inferred from God’s unity and unchangeableness.
- The fathers
- From Irenaeus on, God is ‘simple, uncompounded’; from Ignatius on, the impassible God suffers in Christ’s flesh.
- Agree / diverge
- Agree: the fathers spell out what Scripture implies.
Go deeper: Doctrine page → Reasoning → Sources: irenaeus-s21-s1, ignatius-s21-s1 · all 2 questions
S22 Marriage, divorce and remarriage
- Scripture
- Jesus allows divorce for sexual immorality (Matt 19:9), and Paul frees a believer deserted by an unbelieving spouse; whether remarriage follows is debated, though the setting favours it.
- The fathers
- The earliest fathers allowed separation for adultery but not remarriage; by the 4th century Basil tolerated some remarriage, while Augustine forbade it.
- Agree / diverge
- Diverge: the early fathers are stricter than Matthew’s exception.
Go deeper: Doctrine page → Reasoning → Sources: hermas-s22-s1, tertullian-s22-s1 · all 2 questions
S23 Nature of saving faith
- Scripture
- Faith includes believing the truth and relying on Christ; bare belief, like the demons’, does not save; faith works through love.
- The fathers
- Clement defined faith as ’the assent of piety’; Augustine said believing in Christ means loving him and being joined to him.
- Agree / diverge
- Partly agree: both reject bare assent, but they place love differently.
Go deeper: Doctrine page → Reasoning → Sources: clement-of-alexandria-s23-s1, augustine-s23-s3 · all 2 questions
S24 Merit and good works
- Scripture
- Eternal life is God’s free gift (Rom 6:23), yet God rewards works (Matt 5:12) and holiness is required (Heb 12:14).
- The fathers
- Ignatius: works receive recompense; Augustine: God crowns his own gifts; saving faith works by love.
- Agree / diverge
- Agree that works are necessary and rewarded; differ on the word ‘merit’.
Go deeper: Doctrine page → Reasoning → Sources: ignatius-s24-s1, polycarp-s24-s1 · all 2 questions
Third-order doctrines 27 of 27 researched · all 27
T01 Millennium
- Scripture
- Only Rev 20 mentions a thousand-year reign, and it can be read as future or present.
- The fathers
- Papias, Justin and Irenaeus expected an earthly reign; Justin admitted good Christians disagreed; Augustine read it as the present reign of the Church.
- Agree / diverge
- Both open.
Go deeper: Doctrine page → Reasoning → Sources: irenaeus-t01-s1, augustine-t01-s2 · all 2 questions
T02 Timing of end-times events
- Scripture
- The elect are gathered ‘after the tribulation’ (Matt 24:29–31), after the man of lawlessness appears (2 Thess 2:3).
- The fathers
- The Didache expects the church to face the ‘world-deceiver’ before the Lord comes on the clouds.
- Agree / diverge
- Agree.
Go deeper: Doctrine page → Reasoning → Sources: didache-t02-s1, irenaeus-t02-s1 · all 2 questions
T03 Age of the earth and days of creation
- Scripture
- Genesis 1 has six numbered days with evening and morning, and Exodus 20:11 rests the Sabbath on them.
- The fathers
- The fathers thought the world under 6000 years old; Basil took the days as ordinary days, Augustine as an instantaneous creation described in days.
- Agree / diverge
- Mostly open.
Go deeper: Doctrine page → Reasoning → Sources: basil-t03-s1, augustine-t03-s3 · all 2 questions
T04 Mode of baptism
- Scripture
- The word and the burial imagery favour immersion (Rom 6:4).
- The fathers
- Threefold immersion was the norm; pouring was allowed in need.
- Agree / diverge
- Agree.
Go deeper: Doctrine page → Reasoning → Sources: didache-bap-s1, didache-t04x-s1 · all 2 questions
T05 Frequency of communion
- Scripture
- The first Christians gathered on the first day of the week ’to break bread’ (Acts 20:7).
- The fathers
- The Didache and Justin show the Supper every Sunday, with all present receiving.
- Agree / diverge
- Agree.
Go deeper: Doctrine page → Reasoning → Sources: didache-t05-s1, cyprian-t05-s1 · all 2 questions
T06 Atonement models beyond the core
- Scripture
- Christ’s death is a victory, ransom and sacrifice (Col 2:15; Mark 10:45).
- The fathers
- Victory and recapitulation are pervasive; the ransom-to-the-devil idea was disputed.
- Agree / diverge
- Agree.
Go deeper: Doctrine page → Reasoning → Sources: irenaeus-atn-s2, irenaeus-atn-s1 · all 2 questions
T07 Order of decrees
- Scripture
- Scripture teaches election before creation (Eph 1:4) but does not order God’s decrees.
- The fathers
- The fathers never discussed it.
- Agree / diverge
- Not applicable.
Go deeper: Doctrine page → Reasoning → Sources: augustine-t07-s1 · all 2 questions
T08 Origin of the soul
- Scripture
- Scripture says God gives the spirit (Eccl 12:7) but does not say how each soul begins.
- The fathers
- Tertullian held the soul passes from the parents; Augustine could not decide.
- Agree / diverge
- Both open.
Go deeper: Doctrine page → Reasoning → Sources: tertullian-t08-s1, justin-martyr-t08-s1 · all 2 questions
T09 Intermediate state
- Scripture
- The dead are conscious with Christ or in torment (Luke 16; Phil 1:23).
- The fathers
- A conscious intermediate state of rest or affliction.
- Agree / diverge
- Agree.
Go deeper: Doctrine page → Reasoning → Sources: tertullian-aft-s1, augustine-t09x-s1 · all 2 questions
T10 Final punishment
- Scripture
- Jesus speaks of eternal punishment (Matt 25:46).
- The fathers
- Eternal punishment was the consensus; restoration a minority; annihilation negligible.
- Agree / diverge
- Agree.
Go deeper: Doctrine page → Reasoning → Sources: ignatius-aft-s1, augustine-t10x-s1 · all 2 questions
T11 Universal restoration as a hope
- Scripture
- Jesus sets ’eternal punishment’ beside ’eternal life’ (Matt 25:46).
- The fathers
- Origen and Gregory of Nyssa hoped all would be restored; most fathers did not, and the Origenist form was condemned in 553.
- Agree / diverge
- Agree against it as doctrine.
Go deeper: Doctrine page → Reasoning → Sources: gregory-of-nyssa-t11-s1, constantinople-553-t11-s1 · all 2 questions
T12 Spiritual gifts
- Scripture
- Paul says prophecy and tongues cease ‘when the perfect comes’ (1 Cor 13:10) but does not say when.
- The fathers
- Irenaeus reports prophecy, tongues and healings in his day; Chrysostom says they had ceased by his.
- Agree / diverge
- Both open.
Go deeper: Doctrine page → Reasoning → Sources: irenaeus-t12-s1, irenaeus-t12-s4 · all 2 questions
T13 Sabbath and Lord's Day
- Scripture
- Christians met on the first day (Acts 20:7); Paul calls the Sabbath a shadow fulfilled in Christ (Col 2:16–17).
- The fathers
- Ignatius: Christians ’no longer observing the Sabbath, but living in the observance of the Lord’s Day'.
- Agree / diverge
- Agree.
Go deeper: Doctrine page → Reasoning → Sources: didache-t13-s1, ignatius-t13-s2 · all 2 questions
T14 Regulative or normative worship
- Scripture
- Scripture forbids self-made worship (Col 2:23) yet leaves order to the church (1 Cor 14:40).
- The fathers
- Tertullian and Basil accepted customs with no explicit Scripture command.
- Agree / diverge
- Fathers normative; Scripture open.
Go deeper: Doctrine page → Reasoning → Sources: tertullian-t14-s1, eusebius-t14-s1 · all 2 questions
T15 Liturgical calendar
- Scripture
- Paul calls Christ ‘our Passover’ and says ’let us keep the feast’ (1 Cor 5:7–8), but leaves days to conscience (Rom 14:5).
- The fathers
- Polycarp kept the yearly Pascha as he had with the apostle John.
- Agree / diverge
- Agree.
Go deeper: Doctrine page → Reasoning → Sources: eusebius-t15-s1, eusebius-t15-s2 · all 2 questions
T16 Clerical celibacy
- Scripture
- Elders are ‘husband of one wife’ (1 Tim 3:2), and Peter had a wife (1 Cor 9:5).
- The fathers
- Married clergy were normal; at Nicaea Paphnutius defended them; the West later required continence.
- Agree / diverge
- Agree on permission.
Go deeper: Doctrine page → Reasoning → Sources: socrates-t16-s1, neocaesarea-t16-s1 · all 2 questions
T17 Fasting rules
- Scripture
- Jesus expects his followers to fast (Matt 6:16; 9:15) but sets no days.
- The fathers
- The Didache sets Wednesday and Friday fasts.
- Agree / diverge
- Fathers add fixed days.
Go deeper: Doctrine page → Reasoning → Sources: didache-t17-s1, didache-t17-s2 · all 2 questions
T18 Theosis vocabulary
- Scripture
- Believers become ‘partakers of the divine nature’ (2 Pet 1:4) and are transformed into Christ’s image.
- The fathers
- Irenaeus and Athanasius: Christ became what we are so that we might become what he is.
- Agree / diverge
- Agree on substance.
Go deeper: Doctrine page → Reasoning → Sources: irenaeus-t18-s1, basil-t18-s1 · all 2 questions
T19 Image of God
- Scripture
- Fallen people still bear God’s image (Gen 9:6; Jas 3:9), and it is renewed in Christ ‘in true righteousness and holiness’ (Eph 4:24).
- The fathers
- Irenaeus: the image remains but the likeness was lost; Athanasius: the Word came to re-create the image.
- Agree / diverge
- Agree on T19.1; T19.2 is framed differently.
Go deeper: Doctrine page → Reasoning → Sources: irenaeus-t19-s1, athanasius-t19-s2 · all 2 questions
T20 Sword, magistracy and oaths
- Scripture
- Rulers bear the sword as God’s servants (Rom 13:4); soldiers are not told to resign (Luke 3:14); Jesus forbids casual oaths, but God and Paul swear solemnly.
- The fathers
- Origen said Christians pray rather than fight, and Justin read ‘swear not at all’ strictly; Augustine allowed both.
- Agree / diverge
- Diverge: the earliest fathers are stricter than Scripture’s examples.
Go deeper: Doctrine page → Reasoning → Sources: origen-t20-s1, justin-martyr-t20-s1 · all 2 questions
T21 Women's ministries beyond the presbyterate
- Scripture
- Phoebe is a ‘deacon’ of her church (Rom 16:1); Paul restricts women’s public teaching (1 Tim 2:12) but expects them to pray and prophesy.
- The fathers
- Deaconesses appear by the 4th century; Tertullian and the Apostolic Constitutions forbid women to teach in church or baptize.
- Agree / diverge
- Agree broadly.
Go deeper: Doctrine page → Reasoning → Sources: nicaea-i-t21-s1, tertullian-t21-s1 · all 2 questions
T22 Israel and the Church
- Scripture
- Paul expects that ‘all Israel will be saved’ (Rom 11:26) and says the ceremonial law was a shadow fulfilled in Christ (Col 2:17).
- The fathers
- Ignatius and Justin say the law has ended and Christians are the true Israel; Augustine reports a common hope that the Jews will turn to Christ.
- Agree / diverge
- Agree.
Go deeper: Doctrine page → Reasoning → Sources: augustine-t22-s1, ignatius-t22-s1 · all 2 questions
T23 Admission to the Lord's Table
- Scripture
- Each must ’examine himself’ before eating (1 Cor 11:28); Scripture does not say whether baptized infants share the meal.
- The fathers
- The Didache admits only the baptized; Justin only believers living as Christians; Cyprian shows infants given the cup.
- Agree / diverge
- Agree on fencing; Scripture silent on infants.
Go deeper: Doctrine page → Reasoning → Sources: didache-t23-s1, cyprian-t23-s1 · all 2 questions
T24 Liberty of conscience
- Scripture
- Jesus rejects ’the commandments of men’ as doctrine (Matt 15:9) and leaves the tares until the harvest (Matt 13:30); the church has no civil sword.
- The fathers
- Tertullian and Lactantius said religion cannot be compelled; Augustine later defended compelling the Donatists.
- Agree / diverge
- Agree early; later divergence.
Go deeper: Doctrine page → Reasoning → Sources: ignatius-t24-s1, tertullian-t24-s1 · all 2 questions
T25 Communion in both kinds; reservation and adoration
- Scripture
- ‘Drink of it, all of you’ (Matt 26:27); the Supper is given to be eaten and drunk.
- The fathers
- Justin: deacons give bread and wine to each and carry portions to the absent; Augustine: no one eats that flesh without first worshipping.
- Agree / diverge
- Agree on the cup; Scripture is silent on reservation.
Go deeper: Doctrine page → Reasoning → Sources: justin-t25-s1, justin-t25-s1 · all 2 questions
T26 Church discipline and shunning
- Scripture
- ‘Tell it to the church’ (Matt 18:17); ’not even to eat with such a one’ (1 Cor 5:11), yet ‘warn him as a brother’ (2 Thess 3:15).
- The fathers
- Tertullian: the sinner is severed from the congregation’s prayer and fellowship; John and Polycarp avoided notorious heretics.
- Agree / diverge
- Agree.
Go deeper: Doctrine page → Reasoning → Sources: tertullian-t26-s1, irenaeus-t26-s1 · all 2 questions
T27 The law in the Christian life
- Scripture
- Christ did not abolish the law (Matt 5:17), yet ‘if we say we have no sin, we deceive ourselves’ (1 John 1:8).
- The fathers
- Irenaeus: the Decalogue remains with us; Carthage 418: the saints truly sin.
- Agree / diverge
- Agree.
Go deeper: Doctrine page → Reasoning → Sources: irenaeus-t27-s1, carthage-t27-s1 · all 2 questions
How to go deeper
Every doctrine sits in a tier and is built in three layers, and each links to the one beneath it:
- Doctrine 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.