Lexicon

G4102 - pistis

Strong's: G4102 · BLB lookup Pronunciation: pis'-tis Part of speech: feminine noun Root: from G3982 - peitho (πείθω, "to persuade"), pistis is what results from being persuaded. NT occurrences: ~243

Semantic range (Thayer / BDAG)

Conviction, persuasion, belief, the conviction that something is true; intellectual assent.
Trust, confidence, reliance, relational; staking oneself on someone or something.
Faithfulness, fidelity, trustworthiness, the quality of being reliable (as in "the faithfulness of God").
The faith / the system of belief, the body of revealed Christian doctrine; "the faith" (Jude 3, "the faith once for all delivered").
A guarantee, pledge, proof, that which produces trust (Acts 17:31).

Theological force

Pistis is the noun corresponding to the verb G4100 - pisteuo. The same threefold structure of saving faith applies, notitia (knowledge), assensus (assent), fiducia (trust).

A subtle but important distinction in Pauline usage: pistis Iēsou Christou, "the faith of/in Jesus Christ", has been the subject of prolonged scholarly debate:

Subjective genitive reading ("Christ's own faithfulness"), favored by Richard Hays (The Faith of Jesus Christ, 1983), N. T. Wright, Douglas Campbell. The phrase refers to Christ's own faithful obedience.
Objective genitive reading ("faith in Christ"), the historic Reformation reading. Christ is the object of the believer's faith.

Both senses appear in the broader corpus; the dispute is about specific Pauline passages (Romans 3:22; Galatians 2:16). Modern Reformed scholarship (Moo, Schreiner, R. B. Matlock) generally defends the objective-genitive reading; the new perspective on Paul tends toward subjective.

The pistis/works contrast in Pauline soteriology, Ephesians 2:8-9 / Galatians 2:16 / Romans 3:28, places pistis as the instrument of justification, not its meritorious ground. Faith is the empty hand that grasps Christ's righteousness; it is not itself a work that earns anything.

Notable verses

Saving faith

Ephesians 2.8-9, "by grace you have been saved through pistis… not as a result of works"
Romans 1:17, "the righteous man shall live by pistis" (citing Habakkuk 2:4)
Romans 3:28, "a man is justified by pistis apart from works of the Law"
Galatians 2:16, "a man is not justified by works of the Law but through pistis in Jesus Christ"
Galatians 3:11, "the righteous man shall live by pistis"
Hebrews 11:6, "without pistis it is impossible to please Him"

Faith defined / illustrated

Hebrews 11:1, "pistis is the assurance (hypostasis) of things hoped for, the conviction (elenchos) of things not seen"
Hebrews 11:3-40, the "Hall of Faith", historical examples
James 2:14-26, "pistis without works is dead"

Faith and works (the Reformation crux)

Galatians 5:6, "pistis working through agapē"
James 2:14-26, pistis manifests in works (not contradicting Paul; clarifying that saving pistis is never alone)
Romans 4:1-25, Abraham believed God; reckoned as righteousness

"The faith" as body of doctrine

Jude 3, "earnestly contend for the pistis once for all delivered to the saints"
1 Timothy 4:1, "some will fall away from the pistis"
2 Timothy 4:7, "I have kept the pistis"
Titus 1:13, "sound in the pistis"

God's faithfulness

Romans 3:3, pistis tou theou, "the faithfulness of God"
2 Timothy 2:13, "if we are faithless, He remains faithful"
1 Corinthians 1:9, "God is faithful (pistos, related adjective)"

Connection to OT, Habakkuk 2:4

Habakkuk 2:4, "the righteous shall live by his faithfulness/faith" (Hebrew emunah), cited in Romans 1:17, Galatians 3:11, Hebrews 10:38 as the foundational faith-righteousness text

Patristic / scholarly note

Augustine (On the Spirit and the Letter, c. AD 412; On Faith and Works) develops the relationship between pistis and works against Pelagian semi-Pelagian readings: faith itself is a gift of grace, working through love. The Reformation pressed sola fide, faith alone (apart from meritorious works) is the instrument of justification, against medieval Catholic emphasis on faith formed by love (fides formata) as itself meritorious.

Luther's Bondage of the Will (1525), Calvin's Institutes III.2, the Heidelberg Catechism Q. 21-22, and the Westminster Confession 14 all develop the Reformation doctrine of pistis as the receptive instrument of justifying righteousness. Modern Reformed scholarship (Michael Horton, Justification, 2018; Thomas Schreiner, Faith Alone, 2015) defends the historic reading against new-perspective revisions.

Verses in this codex

See Obsidian's backlinks pane for every verse page linking here. Top-cited references using pistis: Ephesians 2.8-9, Romans 5.8 (faith implied), Hebrews 4.12 (related context).