ματαιόω
I become vain
Definition
The verb ματαιόω means to become vain, futile, or worthless. It describes a process of being emptied of true substance and purpose, resulting in foolishness or moral corruption. In its only New Testament occurrence in Romans 1:21, it refers to the human mind becoming futile and darkened after rejecting the knowledge of God. The word carries the sense of being led astray into emptiness, contrasting with the truth and reality found in God.
Biblical Usage
This word is used only once in the New Testament, in Romans 1:21. It appears in Paul's argument about human sin and idolatry, describing the consequence of humanity's refusal to honor God: 'their thinking became futile (ἐματαιώθησαν) and their foolish hearts were darkened.' The context is theological and anthropological, focusing on the corruption of human reason and understanding apart from God.
Etymology
Derived from the adjective μάταιος (mataios, G3152), meaning 'vain,' 'empty,' or 'fruitless.' The root conveys the idea of something without true content, purpose, or lasting result. The verb form indicates the action of becoming or being made vain. Cognates include ματαιότης (mataiotēs, G3153), 'vanity' or 'emptiness,' used in passages like Romans 8:20 and Ephesians 4:17.
Semantic Range
This word is theologically significant as it describes the fundamental human condition of futility resulting from sin and the rejection of God. In Romans 1:21, it highlights how idolatry and unthankfulness lead to a corrupted, empty reasoning that cannot grasp spiritual truth. Understanding this Greek term enriches the reading of Romans by emphasizing that human wisdom apart from God is not just mistaken but fundamentally void and purposeless, setting the stage for the gospel's offer of redemption and true knowledge.
In the Greco-Roman world, the concept of 'vanity' or 'futility' was often associated with philosophical discussions about the transient nature of life and human endeavors. For Paul's audience, the term would resonate with both Greek philosophical ideas of emptiness and Jewish wisdom literature (like Ecclesiastes) that decry life 'under the sun' as vain without God. The biblical usage, however, ties this emptiness directly to moral and relational rebellion against the Creator.
μωραίνω (mōrainō, G3471) — to make foolish, often in a moral sense; ἀδικέω (adikeō, G91) — to do wrong or act unjustly, focusing on moral action rather than mental futility.
Word Details
How this works
Definitions are from the Dodson Greek-English Lexicon, a concise public-domain resource suitable for introductory word study. Brief glosses are supplemented by STEPBible TBESG data (CC BY 4.0). For advanced research, standard scholarly references include BDAG (Danker, 3rd ed.) and LSJ.
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