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Perseverance of the saints

In short
  • S13.1 Regenerate can fall; final perseverance cannot be known with certainty (high)
  • S13.2 Scripture grants present assurance (1 John 5:13); Augustine denies certainty of final perseverance (Rebuke and Grace 40) (medium)
  • S13.3 Grave sins kill the life of grace and cut a believer off until he repents; daily sins are forgiven through prayer: Era II–III (Tertullian, Cyprian, Augustine), with the restoring of the penitent disputed only by the Montanist Tertullian (medium)

From the study it came from: Agree that grace comes first; diverge on predestination, where the fathers were divided among themselves.

Two separate measures, shown side by side; neither is combined with the other (confidence-weighted, out of 4; counts show how many of this doctrine's 3 questions each rests on; ⚠ marks coverage more than 10 points below the median, a less certain rank). This doctrine is second-order (tier weight 2). How scoring works · Scripture and tradition · Glossary · Every score with its citation

Closeness to Scripture

1 Lutheran3/3 cells 88% 3/3 q
2 Presbyterian3/3 cells 88% 3/3 q
3 Reformed Baptist3/3 cells 88% 3/3 q
4 Anglican3/3 cells 75% 3/3 q
5 General Baptist⚠ 2/3 cells · low coverage 75% 2/3 q
6 Anabaptist⚠ 2/3 cells · low coverage 67% 2/3 q
7 Catholic3/3 cells 56% 3/3 q
8 Orthodox3/3 cells 56% 3/3 q
9 Oriental Orthodox⚠ 1/3 cells · low coverage 50% 1/3 q

Closeness to the fathers

1 Catholic3/3 cells 100% 3/3 q
2 Orthodox3/3 cells 100% 3/3 q
3 Oriental Orthodox⚠ 1/3 cells · low coverage 100% 1/3 q
4 Lutheran3/3 cells 94% 3/3 q
5 Anabaptist⚠ 2/3 cells · low coverage 92% 2/3 q
6 Anglican3/3 cells 75% 3/3 q
7 General Baptist⚠ 2/3 cells · low coverage 50% 2/3 q
8 Presbyterian3/3 cells 38% 3/3 q
9 Reformed Baptist3/3 cells 38% 3/3 q
Charts: closeness to the fathers by question, and timeline
Closeness to the fathers, by question (0–4). Hatched = not assessed in the category file. Click a question for its verdict.
01234Catholic · S13.1: 4/4 — Listed under 'closest to the fathers on': S13.14Orthodox · S13.1: 4/4 — Believers can fall away4Oriental Orthodox · S13.1: 4/4 — Shenouda III, lecture 'The Destruction of the Believer' (official-site summary): 'a believer can fall' through apostasy or sin; 'initial salvation is not enough; what matters is remaining in Christ ... until the end' (verified as summarized)4Lutheran · S13.1: 4/4 — Listed under 'closest to the fathers on': S13.14Anglican · S13.1: 3/4 — Art. XVI: 'we may depart from grace given'; Art. XVII offers comfort of election3Presbyterian · S13.1: 1/4 — Listed under 'departs or sharpens on': S13.1 assurance of perseverance1Reformed Baptist · S13.1: 1/4 — 1689 17.1: 'can neither totally nor finally fall from the state of grace'1General Baptist · S13.1: 2/4 — Standards conflict: Orthodox Creed art. 36 says the elect 'shall certainly persevere unto Eternal Life' (OCR-verified); SC 1660 art. 18: true believers 'may nevertheless for want of watchfulness, swerve and turn aside ... and become as withered Branches'2Anabaptist · S13.1: 4/4 — Dordrecht XVI: a baptised member may sin 'unto death ... forfeiting the kingdom of God'4S13.1conf. highCatholic · S13.2: 4/4 — Trent VI ch. 9: no one can know 'with a certainty of faith' that he has obtained grace (verified)4Orthodox · S13.2: 4/4 — No certainty of final salvation4Oriental Orthodox · S13.2: not assessedLutheran · S13.2: 3/4 — Assurance through the promise: Apology IV, Christ's satisfaction 'presented to us that we might be sure that ... we have a gracious God' (verified)3Anglican · S13.2: 3/4 — Art. XVII: 'sweet, pleasant, and unspeakable comfort' to the godly (verified)3Presbyterian · S13.2: 2/4 — WCF XVIII.1: believers 'may in this life be certainly assured' (verified)2Reformed Baptist · S13.2: 2/4 — 1689 18.1 same (verified)2General Baptist · S13.2: not assessedAnabaptist · S13.2: 3/4 — Not addressed directly3S13.2conf. mediumCatholic · S13.3: 4/4 — Trent VI ch. 15: 'the received grace of Justification is lost, not only by infidelity whereby even faith itself is lost, but also by any other mortal sin whatever, though faith be not lost'. Matches the fathers' distinction; the claim that faith remains while grace is lost is later precision4Orthodox · S13.3: 4/4 — Peter Mogila, Orthodox Confession III, Q. 17–18: 'some sins be unto death, and some not unto death', and mortal sin 'excludeth from the grace of God, and killeth him who fulfileth it in his works'. Matches the fathers' reading of 1 John 5:16–174Oriental Orthodox · S13.3: not assessedLutheran · S13.3: 4/4 — Smalcald Articles III.3.43: when holy men 'happen to fall into manifest sins, as David into adultery, murder, and blasphemy, that then faith and the Holy Ghost has departed from them'. Matches the fathers: grave sin drives out the life of grace, and repentance restores it4Anglican · S13.3: 3/4 — Art. XVI: 'After we have received the Holy Ghost, we may depart from grace given, and fall into sin, and by the grace of God we may arise again'; it speaks of 'deadly sin willingly committed after Baptism'. Agrees with the fathers in outline but gives no account of which sins do this3Presbyterian · S13.3: 2/4 — WCF XVII.1: those effectually called 'can neither totally nor finally fall away from the state of grace'; XV.4: 'As there is no sin so small, but it deserves damnation; so there is no sin so great, that it can bring damnation upon those who truly repent'. Keeps the need to repent of grave sin, but denies that it removes a believer's state of grace, against the fathers' distinction of deadly sins2Reformed Baptist · S13.3: 2/4 — 1689 17.1 uses the same words as WCF XVII.1. Same assessment as Presbyterian2General Baptist · S13.3: 2/4 — Orthodox Creed XXXVI: those effectually called 'shall certainly persevere unto Eternal Life'. Same direction as Presbyterian2Anabaptist · S13.3: not assessedS13.3conf. medium
CatholicOrthodoxOriental OrthodoxLutheranAnglicanPresbyterianReformed BaptistGeneral BaptistAnabaptistnot assessed
When the cited witnesses spoke (approximate dates) and where later traditions fixed their positions. Filled dot = consensus question; hollow orange = a question on which the fathers varied. Each item links to its source note or post-750 note.
1002003004005006007001000125015001700post-750 (compressed)Tertullian (c. 205) · S13.3Tertullianc. 205 · S13.3Tertullian (c. 205) · S13.3Tertullianc. 205 · S13.3Cyprian (c. 252) · S13.3Cyprianc. 252 · S13.3Augustine (c. 415) · S13.1Augustinec. 415 · S13.1Augustine (c. 415) · S13.1Augustinec. 415 · S13.1Augustine (c. 415) · S13.2Augustinec. 415 · S13.2Augustine (c. 415) · S13.3Augustinec. 415 · S13.3Trent VI (1547) · CatholicTrent VI1547 · CatholicFormula of Concord (1577) · LutheranFormula of Concord1577 · LutheranWestminster Confession (1646) · PresbyterianWestminster Confession1646 · PresbyterianConfession of Dositheus (1672) · OrthodoxConfession of Dositheus1672 · Orthodox
  1. c. 205 Tertullian S13.3
  2. c. 205 Tertullian S13.3
  3. c. 252 Cyprian S13.3
  4. c. 415 Augustine S13.1
  5. c. 415 Augustine S13.1
  6. c. 415 Augustine S13.2
  7. c. 415 Augustine S13.3
  8. 1547 Trent VI Catholic
  9. 1577 Formula of Concord Lutheran
  10. 1646 Westminster Confession Presbyterian
  11. 1672 Confession of Dositheus Orthodox

S13 · Perseverance of the saints

Can a true believer finally fall away?

Tier: Second-order (scoring weight 2). How the tiers were set: theological triage. Site structure: structure.

Questions

  • S13.1 Perseverance (was salvation/S4)
  • S13.2 Can a believer be assured of salvation?
  • S13.3 Does a grave (‘mortal’) sin cost a believer the grace of justification?

Verdicts and trace

S13.1 · Perseverance

QuestionVerdictConfidenceReasoningKey sourcesScripture (benchmark)
S13.1Regenerate can fall; final perseverance cannot be known with certaintyHigh (Augustine)S13.1.1 · S13.1.3 weighingaugustine-sal-s3 · augustine-sal-s4S13.1.4: low-medium

S13.2 · Can a believer be assured of salvation?

QuestionVerdictConfidenceReasoningKey sourcesScripture (benchmark)
S13.2Scripture grants present assurance (1 John 5:13); Augustine denies certainty of final perseverance (Rebuke and Grace 40)MediumS13.2.1 · S13.2.3 weighingaugustine-s13x-s1S13.2.4: medium-high

S13.3 · Does a grave (‘mortal’) sin cost a believer the grace of justification?

QuestionVerdictConfidenceReasoningKey sourcesScripture (benchmark)
S13.3Grave sins kill the life of grace and cut a believer off until he repents; daily sins are forgiven through prayer: Era II–III (Tertullian, Cyprian, Augustine), with the restoring of the penitent disputed only by the Montanist TertullianMedium. The distinction is clear in Era II–III; the precise account of what is lost is laterS13.3.1 · S13.3.3 weighingtertullian-s13x-s1 · tertullian-s13x-s2 · cyprian-s13x-s1 · augustine-s13x-s2S13.3.4: low-medium

Post-750 development

Which of this doctrine’s questions each tradition stays closest to, or departs from. Each row links to the tradition’s notes.

TraditionClosest to the fathers onDeparts or sharpens on
CatholicS13.1—
Orthodox——
Oriental OrthodoxS13.1—
LutheranS13.1—
Anglicanpartly S13.1—
Presbyterian—S13.1 assurance of perseverance
Reformed Baptist—S13.1
General BaptistS13.1partly S13.1
AnabaptistS13.1—

Origin

Plan, overall verdict and verification status of the former salvation category (shared with the other doctrines that came from it)

Salvation: grace, free will, predestination, perseverance

Method and conventions: docs/conventions.md. Reasoning: salvation reasoning.

1. Plan

Questions: S1 grace and the beginning of faith; S2 free will; S3 predestination; S4 perseverance and assurance. The ground and form of justification are covered in justification and not repeated here. Sources: Justin, 1 Apol. 43; Irenaeus AH IV.37; Origen, De Principiis III.1; Cassian, Conf. 13; Augustine, Predestination of the Saints, Gift of Perseverance, Rebuke and Grace; Orange 529. Planned but not yet read: Prosper, Call of All Nations; Chrysostom on Rom 9; John of Damascus II.25–30; Gottschalk (post-750). Scripture: Rom 8–9; Eph 1–2; John 6, 10; Phil 1:6, 29; Heb 6:4–6; 1 Tim 2:4.

2. Verdicts and trace

Weighed under the source-proximity principle: Scripture first, then the father tiers T1–T4. Verdict changes are listed in docs/proximity-changes.md.

3. Post-750 development

4. Overall verdict

Catholic closest overall (Orange plus Trent canons 4 and 15–17 follow Augustine closely on S4). Lutheran is close on S1, S3 and S4. Orthodox is closest on S2 and the earlier S3 line. Presbyterian departs on S4 and on double predestination. Confidence: medium. S3 is split, and the Greek fathers are thinly verified.

5. Verification status

  • Verified: Justin, Irenaeus, Cassian, Augustine (3 works), Orange c. 5, Trent VI cc. 4 and 15–17, Dositheus 3, FC SD XI.8, WCF III.3 and XVII.1.
  • To verify: Origen III.1 detail and Comm. Rom. 8:29; the conclusion of Orange; Prosper; Chrysostom on Rom 9; John of Damascus II; Luther, Bondage of the Will; FC on the regenerate falling away; LSB English.
  • S13.3 (2026-10-24): verified in English: Tertullian, On Modesty 19; Cyprian, On the Lapsed 36; Augustine, Enchiridion 71; Trent VI ch. 15; Mogila, Orthodox Confession III.17–18; Smalcald Articles III.3.43; Art. XVI; WCF XV.4, XVII.1; 1689 17.1; Orthodox Creed XXXVI. To verify: the section number of the Cyprian passage in On the Lapsed (36 in the ANF numbering); the Latin of Tertullian, On Modesty 19.