ὀμνύω
To swear
Reading a lexicon entry
What this page is: Each lexicon entry shows the original Hebrew or Greek word behind the English translation: its meaning, its range of use, and where it appears in Scripture.
Strong's number: The Strong's code (H- or G-) is the standard reference number for this word. It connects this entry to chapter and passage language tabs.
Canonical witness: The witness passages show where this word is used in context. Click any to open the study page for that passage.
These lexicon entries are being actively developed. If you notice missing content, incorrect definitions, or have suggestions, we'd love to hear from you. Share a note on our Connect page and include a screenshot if helpful.
What does ὀμνύω (omnýō) mean in the Bible?
ὀμνύω (omnýō) is a Greek word meaning "to swear". ὀμνύω (so Hdt. Clarifies Jesus’ correction of manipulative oath practices. This term runs through the canonical themes of Covenant.
Meaning
Solemn affirmation by oath; often involves swearing by or upon something considered sacred or authoritative.
(so Hdt. and some Att.. writers) and ὄμνυμι (so generally in Att.. prose and always in Trag.; Mrk.14:71, -ύναι), [in LXX chiefly for שָׁבַע ni. ;] to swear, affirm by oath: Mat.26:74, Mrk.14:71, Heb.7:21; before εἰ (q.v), Heb.3:11 4:3; with dative of person(s), Mrk.6:23; id. with inf., Heb.3:18; before ὅρκῳ, Act.2:30; ὀ. ὅρκον, πρός, with accusative of person(s) (cl.), Luk.1:73; with accusative (of that by which one swears; cl., see MM, xviii), Jas.5:12; before κατά, with genitive (LXX; Bl., § 34, 1), Heb.6:13, 16; before ἐν (εἰς), as in Heb. (El., § 39, 4), Mat.5:34, 36 23:16, 18 23:20-22 Rev.10:6 (Bl., § 70, 3).
Why This Word Matters
Clarifies Jesus’ correction of manipulative oath practices. James 5:12
Identifies the formal oath-making James restricts. James 5:12
Grammatical Forms
How mood, tense, and voice shift the force of this verb in context.
Indicative states a fact or reality 13×
Subjunctive possibility, probability, or purpose 5×
Participle verbal adjective — the action as a modifying quality 3×
Infinitive verbal noun — the action in abstract 4×
Imperative command or strong request 1×
Discourse Aspect
How this verb appears across 26 occurrences in the NT discourse index (MACULA Greek SBLGNT).
Aspect reflects grammatical form — not authorial emphasis. Participles and infinitives are verbal adjectives and nouns respectively.
Clause data: MACULA Greek (Clear Bible, CC BY 4.0) · SBLGNT (Logos/SBL, CC BY 4.0)
Canonical Themes
Biblical Occurrences
Each occurrence shows the passage reference, the original language term as it appears in that context, its transliteration, and the contextual sense.
Appears In
Compound and idiomatic lexemes in which this word is a constituent. Follow a link to study the phrase and its other participating words.
Word Pictures (Robertson)
A.T. Robertson's Word Pictures in the New Testament (1930–31) discusses this term in the following chapters. Open any chapter and go to the Word Pictures tab to read his verse-by-verse commentary.
A.T. Robertson, Word Pictures in the New Testament (1930–31) — public domain