Greek

Pisteuo

πιστεύω

pisteuō

Meaning

To believe, trust, have faith

The Greek verb for 'believe' or 'trust' — the action verb behind New Testament faith. 'Pisteuō' is more than intellectual assent; it is committed trust in a person. John 3:16: 'whosoever believeth [pisteuōn] in him should not perish.'

Etymology & Background

Pisteuo (πιστεύω) is the Greek verb for 'to believe, trust, have faith.' It is the verbal form of the noun 'pistis' (πίστις, faith). The word covers a wide range: to accept as true (intellectual belief), to trust or rely on (personal commitment), and to be faithful (relational fidelity). In Classical Greek, pisteuō meant to trust someone or accept what they said. In the NT it becomes the central verb for the believer's relationship to Christ. To 'believe in' Christ (Greek: pisteuō eis Christon) is to entrust oneself wholly to him — not merely to assent to his existence. The English 'believe' often connotes mere mental acceptance; pisteuō means trust-commitment.

Biblical Usage

Pisteuo appears over 240 times in the NT, especially in John (98 occurrences). (1) Saving faith — believing in Christ for salvation. John 3:16 — 'whosoever believeth in him should not perish.' John 3:36 — 'He that believeth on the Son hath everlasting life.' John 20:31 — 'But these are written, that ye might believe that Jesus is the Christ.' Acts 16:31 — 'Believe on the Lord Jesus Christ, and thou shalt be saved.' (2) Faith as confidence. Romans 4:3 — 'Abraham believed God, and it was counted unto him for righteousness.' (3) Faith as the means of justification. Romans 3:22 — 'Even the righteousness of God which is by faith of Jesus Christ unto all and upon all them that believe.' (4) Belief as cognitive recognition. James 2:19 — 'the devils also believe, and tremble.' Mere mental belief is not saving faith. (5) Belief as ongoing trust. John 6:35 — 'he that believeth on me shall never thirst.' Continuing reliance. (6) Belief that includes obedience. John 3:36 — those who 'believe not' are those who 'obey not' (John 3:36 ESV brings this out). Faith and obedience are inseparable. Two preposition pairs are important: pisteuō HOTI (believe THAT — intellectual acceptance), and pisteuō EIS (believe INTO — personal commitment). Saving faith is the second.

Key Verses

John 3:16

For God so loved the world, that he gave his only begotten Son, that whosoever believeth in him should not perish, but have everlasting life.

John 20:31

But these are written, that ye might believe that Jesus is the Christ, the Son of God; and that believing ye might have life through his name.

Romans 10:9-10

If thou shalt confess with thy mouth the Lord Jesus, and shalt believe in thine heart that God hath raised him from the dead, thou shalt be saved.

Acts 16:31

Believe on the Lord Jesus Christ, and thou shalt be saved.

Hebrews 11:6

But without faith it is impossible to please him: for he that cometh to God must believe that he is, and that he is a rewarder of them that diligently seek him.

James 2:19

Thou believest that there is one God; thou doest well: the devils also believe, and tremble.

Why It Matters

Believe in Christ — not just THAT he existed, but INTO him as Lord and Savior. Trust him with your eternal destiny, your daily decisions, your fears, your hopes. Pisteuō is not a one-time act but a lifelong stance. Confess (Romans 10:9). Continue believing (John 6:35). The faith that saves is the faith that endures.

Frequently Asked Questions

What does pisteuo mean in the Bible?

Pisteuo (πιστεύω) is the Greek verb for 'to believe, trust, have faith.' It appears over 240 times in the NT, especially in John. It refers not merely to intellectual assent but to committed trust in a person — entrusting oneself wholly to Christ. John 3:16 — 'whosoever believeth [pisteuōn] in him should not perish.'

What's the difference between believing 'that' and believing 'in'?

In Greek, pisteuō hoti (believe THAT) is intellectual acceptance — agreeing that something is true. Pisteuō eis (believe INTO) is personal commitment — entrusting oneself to someone. Saving faith is the second. James 2:19 — 'the devils also believe [hoti], and tremble.' Demons believe THAT God exists; they do not trust IN him. Saving faith involves both — but goes beyond mental assent to personal trust.

Is faith just believing without evidence?

No — biblical faith is committed trust based on evidence of trustworthiness. Hebrews 11:1 uses 'elenchos' (evidence). Romans 10:17 — 'faith cometh by hearing, and hearing by the word of God.' Faith is based on revelation (God's word), confirmed by reason, and exercised in trust. See /apologetics/is-faith-blind.

How do I have saving faith?

Romans 10:9 — 'if thou shalt confess with thy mouth the Lord Jesus, and shalt believe in thine heart that God hath raised him from the dead, thou shalt be saved.' Acts 16:31 — 'Believe on the Lord Jesus Christ.' Practically: acknowledge sin, trust Christ as Savior and Lord, receive him (John 1:12), and continue trusting (John 6:35). The faith that saves is the faith that endures.

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