Faith

The Hebrew: Emunah and Aman

The Hebrew word usually translated "faith" is emunah (אֱמוּנָה, Strong's H530) — from the root aman (אָמַן, H539), "to be firm, to be faithful, to be reliable." The same root gives us the English "Amen" — a word of affirmation meaning "truly, so be it, firm." Emunah is not primarily believing that something is true; it is being firm — faithfulness, reliability, steadiness.

In the Hebrew Bible, emunah is more often used of God than of humans. It describes God's faithfulness — his reliability, his trustworthiness across time. When the Hebrew Bible speaks of human emunah, the word still carries the sense of steadiness and fidelity, not primarily mental assent.

Deuteronomy 32:4 — "He [is] the Rock, his work [is] perfect: for all his ways [are] judgment: a God of truth and without iniquity, just and right [is] he."

The Hebrew "a God of truth" is el emunah — "a God of faithfulness." The same word translated "faith" when applied to humans is translated "faithfulness" when applied to God — revealing its core meaning.

The most famous Old Testament use of emunah of humans:

Habakkuk 2:4 — "the just shall live by his faith."

Paul quotes this verse three times (Romans 1:17, Galatians 3:11, Hebrews 10:38) as the foundation of his argument for justification by faith. The Hebrew emunah here is rendered Greek pistis in the Septuagint.

The Greek: Pistis

The New Testament uses:

• Pistis (πίστις, Strong's G4102) — "faith, faithfulness, trust, belief." The noun, appearing ~244 times.
• Pisteuō (πιστεύω, G4100) — "to believe, to have faith, to trust." The verb, appearing ~241 times.
• Pistos (πιστός, G4103) — "faithful, trustworthy, believing." The adjective.

Like the Hebrew, the Greek pistis is broader than English "faith." It covers:

• Trust — confidence placed in a person or thing.
• Faithfulness — reliability, being trustworthy oneself.
• Belief — the cognitive content held to be true.
• Commitment — allegiance given to a person.

In classical Greek, pistis between friends meant the loyal trust that made friendship work. Between ruler and subjects, it meant the fidelity the subjects owed and the ruler promised. In the New Testament, all these senses remain in play. "Faith in Christ" is not primarily intellectual assent — it is trust, commitment, loyalty given over.

Hebrews 11:1 — The Closest Thing to a Definition

Hebrews 11:1 — "Now faith is the substance of things hoped for, the evidence of things not seen."

The Greek uses two distinctive words:

• Hypostasis (ὑπόστασις, G5287) — "substance, foundation, assurance." Literally "that which stands under." The word was used in Greek legal and philosophical contexts for the concrete reality underlying appearances.
• Elenchos (ἔλεγχος, G1650) — "proof, evidence, conviction." Used of cross-examination evidence in ancient courts.

The verse is saying faith functions as the present-tense substance of future hopes and as the present-tense evidence of unseen realities. It is not defining faith as wishful thinking, but as a mode of knowing that apprehends realities not yet visible. Hebrews 11 then gives sixteen verses of examples — Abel, Enoch, Noah, Abraham, Sarah, Moses — each a concrete illustration of how faith functioned in their historical circumstances.

Abraham: The Pattern of Faith

Paul's argument for justification by faith centers on Abraham:

Genesis 15:6 — "And he believed in the LORD; and he counted it to him for righteousness."

The Hebrew verb aman appears here in the Hiphil stem (he'emin, "he caused firmness," idiomatically "he believed, he trusted"). The verse is cited four times in the New Testament (Romans 4:3, 9, 22, Galatians 3:6, James 2:23).

The chronological detail matters for Paul's argument. Genesis 15:6 records Abraham's faith before circumcision (Genesis 17) and before the law (given through Moses centuries later). Paul's logic in Romans 4: Abraham was counted righteous on the basis of faith alone, before any ceremonial or legal obedience. Therefore Abraham's pattern of faith is available to uncircumcised Gentiles on the same terms.

James cites the same verse for a different point (James 2:21–24): Abraham's faith was demonstrated by his willingness to offer Isaac. The Greek in James is not in tension with Paul — James is arguing that faith without works is not genuine faith, while Paul is arguing that works of the law cannot establish righteousness. Both cite Genesis 15:6; both affirm the priority of faith; their audiences and pastoral concerns differ.

Faith and Works

The apparent tension between Paul and James:

Romans 3:28 — "Therefore we conclude that a man is justified by faith without the deeds of the law."

James 2:24 — "Ye see then how that by works a man is justified, and not by faith only."

Careful reading dissolves the tension:

• "Works" mean different things. Paul is arguing against works of the Mosaic law as the basis of righteousness. James is arguing for works of love and obedience as the evidence of living faith.
• "Faith" means different things. Paul's "faith" is active trust that produces obedience. James explicitly distinguishes dead faith — mere intellectual assent — from living faith. "The devils also believe, and tremble" (James 2:19) — demonic faith is doctrinally accurate but saves no one.
• "Justified" can have different aspects. Paul is focused on justification's entrance (how one comes into right standing); James on its manifestation (how one's righteousness is demonstrated).

Paul himself writes that "faith worketh by love" (Galatians 5:6). James writes that "faith without works is dead" (James 2:26). Both are making the same underlying point: faith that does not produce a changed life is not the faith Scripture describes.

Faith's Object

Biblical faith is not generic — its meaning depends entirely on its object. The New Testament consistently locates faith in specific persons and realities:

• Faith in Christ — "believe on the Lord Jesus Christ, and thou shalt be saved" (Acts 16:31).
• Faith in God — "believe in God, believe also in me" (John 14:1).
• Faith in the Gospel — "the gospel... to every one that believeth" (Romans 1:16).
• Faith in Christ's blood — "faith in his blood" (Romans 3:25).

"Having faith" as a posture detached from any object does not appear in Scripture. Faith without an object is not biblical faith.

Faith as Gift

Ephesians 2:8 — "For by grace are ye saved through faith; and that not of yourselves: [it is] the gift of God."

The Greek grammar is debated: does "gift of God" refer to grace, to faith, or to the entire salvation event? The neuter pronoun touto ("that") does not match the feminine nouns for either "grace" or "faith," which has led commentators to read the gift-claim as applying to the whole saving action ("the being-saved," as a unit). Either way, the thrust is clear: salvation — including the faith through which it is received — is not a human self-generated product.

The same pattern: Philippians 1:29 — "unto you it is given in the behalf of Christ, not only to believe on him, but also to suffer for his sake." The Greek verb echaristhē ("was graciously given") applies to believing.

Faith and Sight

2 Corinthians 5:7 — "For we walk by faith, not by sight."

John 20:29 — "blessed [are] they that have not seen, and [yet] have believed."

The Bible does not disparage sight — its final hope is the visible return of Christ, the visible resurrection, the seeing of God face to face (1 Corinthians 13:12, 1 John 3:2). Faith is not opposed to sight in principle; it is the present-age mode of knowing what will, in the age to come, be seen. "For now we see through a glass, darkly; but then face to face: now I know in part; but then shall I know even as also I am known" (1 Corinthians 13:12).

Summary

• Hebrew: emunah — firmness, faithfulness, reliability (source of "Amen").
• Greek: pistis — trust, commitment, belief, faithfulness.
• Hebrews 11:1 — faith as hypostasis and elenchos, substance of hope and evidence of unseen.
• Abraham — pattern of faith counted as righteousness (Genesis 15:6), prior to law or ritual.
• Paul and James — both affirm faith's priority; differ in audience and the meaning of "works" in view.
• Biblical faith is always in something — not generic, but placed in Christ, God, the Gospel, the blood.