δικαιόω

I make righteous, defend the cause of, justify

Definition

The verb δικαιόω primarily means 'to justify' or 'to declare righteous.' In a legal sense, it refers to acquitting someone of charges or vindicating their cause, as seen in Luke 7:29 where the people 'justified God.' In its most significant theological sense, it describes God's act of declaring a sinner righteous by grace through faith, not based on personal merit, as emphasized in Romans 3:24 and Galatians 2:16. This justification is a forensic declaration of righteousness that changes one's status before God, rather than an internal transformation (though that follows). It can also mean 'to show or prove to be right,' as when wisdom is justified by her deeds (Matthew 11:19).

Biblical Usage

Δικαιόω is used 36 times in the New Testament, predominantly in the writings of Paul (e.g., Romans, Galatians) where it is a central term for salvation by faith. In the Gospels, it often appears in legal or vindicatory contexts (e.g., Luke 7:29, 18:14). Luke 10:29 and 16:15 show its use in a self-justifying sense. The pattern is clear: in Paul, it is almost exclusively about divine justification of sinners; in the Synoptic Gospels, it more frequently concerns human pronouncements of righteousness or vindication.

Etymology

Derived from the adjective δίκαιος (dikaios, G1342), meaning 'righteous' or 'just.' The verb form means 'to make righteous' or 'to treat as righteous.' It belongs to a word family including δικαιοσύνη (righteousness, G1343) and δικαίωμα (ordinance, judgment, G1345). The root concept is conformity to a standard of right, particularly God's standard.

Semantic Range

This is a cornerstone word for the doctrine of justification by faith. It captures the heart of the gospel: that sinners are declared righteous before God through faith in Christ's atoning work, not by works of the law (Romans 3:28). Understanding this Greek term clarifies that justification is a legal declaration of status, distinct from sanctification (the process of becoming holy). It enriches reading by highlighting the transformative legal reality Paul describes—believers are counted as righteous in God's courtroom.

In the first-century Greco-Roman and Jewish world, the concept had strong legal and relational overtones. In Jewish thought, being 'justified' meant being in a right covenantal relationship with God. The Greek usage added a forensic dimension from the law courts. The New Testament synthesis, especially in Paul, uses this cultural understanding to explain how one is put right with God through a divine legal verdict, contrasting with Jewish cultural emphasis on law-keeping for righteousness.

δικαιοσύνη (dikaiosynē, G1343) — the noun 'righteousness,' the state or quality of being right. δίκαιος (dikaios, G1342) — the adjective 'righteous' or 'just,' describing one who is in right standing. λογίζομαι (logizomai, G3049) — 'to reckon' or 'count,' often used in conjunction with justification (e.g., Romans 4:3-5).

Word Details

Scripture References