F15 reasoning: Authority and truthfulness of Scripture

Reasoning steps: Authority and truthfulness of Scripture

Verdicts: F15 · Authority and truthfulness of Scripture. Method: conventions, scoring and proximity eras. Scripture is the primary measure; fathers are weighed by era (Era I to c. 150 = 1.0, II = 0.8, III = 0.6, IV = 0.4).

F15.1: Is Scripture God’s inspired and truthful word?

Step F15.1.1: Scripture

2 Tim 3:16 (θεόπνευστος); 2 Pet 1:21 (men ‘carried along by the Holy Spirit’); John 10:35 (‘Scripture cannot be broken’); Matt 5:18.

Step F15.1.2: Patristic evidence

Clement (Era I): ’the Scriptures, which are the true utterances of the Holy Spirit’. Irenaeus: ’the Scriptures are indeed perfect, since they were spoken by the Word of God and His Spirit’. Augustine: the canonical authors ‘were completely free from error’. Sources: clement-of-rome-f15-s1 · irenaeus-f15-s1 · augustine-f15-s1.

Step F15.1.3: Weighing decision

Unanimous from Era I. Verdict: consensus.

Confidence: High.

Step F15.1.4: Source-proximity weighing

Scripture (benchmark): Scripture is God-breathed (2 Tim 3:16) and ‘cannot be broken’ (John 10:35). (Scripture confidence: high)
Assessment: Scripture and Era I agree; all nine confess it in their classic texts.

F15.2: Is the Old Testament Christian Scripture (against Marcion)?

Step F15.2.1: Scripture

Luke 24:27, 44 (Moses, the Prophets and the Psalms speak of Christ); Rom 15:4; 2 Tim 3:15–16 (the ‘sacred writings’ Timothy knew from childhood are God-breathed); Matt 5:17.

Step F15.2.2: Patristic evidence

Irenaeus (Era II) against Marcion: ‘one and the same householder produced both covenants, the Word of God, our Lord Jesus Christ, who spoke with both Abraham and Moses’. Sources: irenaeus-f15-s2.

Step F15.2.3: Weighing decision

Unanimous among the orthodox; Marcion’s rejection was condemned. Verdict: consensus.

Confidence: High.

Step F15.2.4: Source-proximity weighing

Scripture (benchmark): Jesus and Paul treat the Old Testament as Scripture about Christ (Luke 24:27; 2 Tim 3:15–16). (Scripture confidence: high)
Assessment: Scripture and Era II agree; all nine receive both Testaments.

F15.3: Are the things necessary for salvation clear in Scripture?

Step F15.3.1: Scripture

Deut 30:11–14 (the commandment is not too hard or far off); Ps 19:7–8 (the law of the Lord is perfect, making wise the simple); 2 Tim 3:15–17 (the sacred writings are able to make one wise for salvation; Scripture is profitable for teaching); 2 Pet 3:16 (some things in Paul are hard to understand — obscurity of some passages, not of the saving message as a whole).

Step F15.3.2: Patristic evidence

Irenaeus (Era II): the things God has placed within our knowledge ‘are clearly and unambiguously in express terms set forth in the Sacred Scriptures’; the prophets and Gospels ‘can be clearly, unambiguously, and harmoniously understood by all’ (irenaeus-f15-s3). Augustine (Era III): ‘among the things that are plainly laid down in Scripture are to be found all matters that concern faith and the manner of life’; obscure passages are opened by the plainer ones (augustine-f15-s2).

Step F15.3.3: Weighing decision

Reading A: Scripture’s saving teaching is so obscure that it cannot be known without a living magisterium as a second source of the content itself. Reading B: things necessary for faith and life are plainly set out in Scripture; hard passages exist (2 Pet 3:16) but are read by the plain. B is chosen. Irenaeus and Augustine state B; the tradition-relation question (who authoritatively interprets disputes) is S07, not this question.

Confidence: High.