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Bible Lexiconἀληθεύω
Dodson Greek Lexicon (2010)G226verb

ἀληθεύω

alētheyō

I say, speak truth, I do truth

Definition

The verb ἀληθεύω means 'to speak truth' or 'to live truthfully,' encompassing both verbal honesty and behavioral integrity. In Galatians 4:16, Paul uses it in the context of speaking hard truths ('Have I become your enemy by telling you the truth?'), highlighting its confrontational aspect. In Ephesians 4:15, it describes the communal practice of 'speaking the truth in love' as essential for spiritual growth, emphasizing truth-telling that is relational and edifying. Thus, the word moves beyond mere factual accuracy to embody a life aligned with God's reality.

Biblical Usage

ἀληθεύω appears only twice in the New Testament, both in Pauline epistles. In Galatians 4:16, it is used rhetorically to defend Paul's blunt, corrective teaching. In Ephesians 4:15, it is part of a positive exhortation for believers to mature together by combining truth and love. The pattern shows its application in both corrective (Galatians) and constructive (Ephesians) community contexts.

Etymology

Derived from the adjective ἀληθής (alēthēs, G227), meaning 'true' or 'truthful,' which itself comes from ἀ- (a-, 'not') and λήθη (lēthē, 'forgetfulness, concealment'). Thus, the core idea is 'unconcealed' or 'not forgotten'—truth as what is real and manifest. The verb form ἀληθεύω means to actively express or live out that reality.

Semantic Range

This word is theologically significant as it links truth with both doctrine and practice. It shows that biblical truth is not just a set of propositions but a way of life lived in community (Ephesians 4:15). Understanding ἀληθεύω enriches reading by highlighting that Christian growth requires truth expressed in love, balancing conviction with grace, as modeled in Paul's ministry (Galatians 4:16).

In Greco-Roman culture, truth (alētheia) was often discussed philosophically as an abstract ideal. In the New Testament, ἀληθεύω grounds truth in relational and ethical action, particularly within the Christian community. This shifts the focus from mere intellectual agreement to embodied, loving faithfulness, which was counter-cultural in its emphasis on communal integrity.

ἀληθέω (alētheō, G226 alternate form) — identical in meaning, a variant spelling. λαλέω (laleō, G2980) — a broader term for 'to speak,' without the specific truth component. μαρτυρέω (martyreō, G3140) — 'to bear witness,' often to a truth, but with a legal or testimonial focus.

Word Details

Strong's NumberG226
Part of Speechverb
Greek Formἀληθεύω
Transliterationalētheyō
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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Scripture References

Appears in 2 verses in the Bible
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