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ὀμνύω

omnýō /om-o'-o/ Ask about this word
a prolonged form of a primary, but obsolete , for which another prolonged form is used in certain tenses; to swear, i.e. take (or declare on) oath
swear.
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Core Meaning & Semantic Range

The Greek word omnýō, represented by G3660, is a verb used to swear, i.e. take (or declare on) oath. It appears 27 times across 21 unique verses in the Bible. This term signifies the act of making a solemn declaration, often invoking a higher power or authority to validate a statement or promise.

Biblical Occurrences & Contextual Analysis

In the biblical narrative, G3660 is used to describe oaths taken by both God and man. God is shown to swear an oath to establish the certainty of His promises, as when he sware to Abraham (Acts 7:17, Luke 1:73). Because He could swear by no one greater, He sware by himself Hebrews 6:13. Conversely, Jesus commands his followers, "Swear not at all" Matthew 5:34, a prohibition repeated by James James 5:12. The word is also used to describe misguided or desperate human oaths, such as the Pharisees swearing by the gold of the temple Matthew 23:16 or Peter's denial of Christ, when he began to curse and to swear Matthew 26:74.

Related Words & Concepts

Several related words help clarify the concept of oaths and solemn declarations:

  • G3727 hórkos (an oath): This noun is frequently used with G3660. God had sworn with an oath to David Acts 2:30, and for humans, an oath serves for confirmation to end strife Hebrews 6:16.
  • G3728 horkōmosía (asseveration on oath): This term is used specifically in Hebrews to highlight that Christ's priesthood was established with an oath, unlike the former priests who were made without one Hebrews 7:21.
  • G2653 katanathematízō (to imprecate): This word describes the act of cursing and is used alongside omnýō in Peter's denial of Jesus Matthew 26:74.
  • G332 anathematízō (to declare or vow under penalty of execration): Similar to the above, this term is paired with omnýō when Peter began to curse and to swear Mark 14:71.
  • G1861 epangéllō (to promise): This word connects the act of promising to swearing. God first made promise to Abraham and then sware to confirm it Hebrews 6:13.
  • G951 bebaíōsis (confirmation): This word describes the purpose of a human oath, which provides confirmation and is an end to all strife Hebrews 6:16.

Theological Significance

The theological weight of G3660 is significant, highlighting contrasts between divine faithfulness and human fallibility.

  • Divine Oath as Guarantee: When God swears, it serves as an unbreakable guarantee of His promise. He sware to Abraham concerning his descendants Luke 1:73 and to establish the eternal priesthood of Christ after the order of Melchisedec Hebrews 7:21.
  • Human Oaths and Integrity: Jesus' prohibition to "swear not at all" Matthew 5:34 elevates the standard of speech for believers. He critiques oaths that rely on created things like the temple or heaven, pointing out that these ultimately invoke God himself Matthew 23:21-22. The command is to have simple integrity, letting a "yea" be "yea" James 5:12.
  • The Oath as Confirmation: Oaths are shown to function as a means of ending disputes among men. An oath for confirmation is an end of all strife Hebrews 6:16, demonstrating its role in establishing certainty in human affairs.

Summary

In summary, G3660 is a crucial term for understanding solemn declarations in Scripture. It is used to affirm the unchangeable nature of God's promises, most notably His covenant with Abraham and the establishment of Christ's eternal priesthood (Hebrews 6:13, Hebrews 7:21). At the same time, it is central to the New Testament's call for a higher form of integrity, where believers are instructed not to swear at all but to live with such truthfulness that their word alone is sufficient (Matthew 5:34, James 5:12).

Grammatical Forms

In the Greek New Testament, this word appears as a verb across 27 occurrences, inflected in 10 grammatical forms.

  • Aorist Active Indicative 3rd Singular
  • Aorist Active Subjunctive 3rd Singular
  • Aorist Active Participle Nominative Singular Masculine
  • Present Active Indicative 3rd Singular
  • Aorist Active Indicative 1st Singular
  • Aorist Active Infinitive
  • Present Active Infinitive
  • Aorist Active Subjunctive 2nd Singular
  • Present Active Imperative 2nd Plural
  • Present Active Indicative 3rd Plural
Nominative
The subject of the verb.
Singular
One.
Plural
More than one.
Masculine
Masculine grammatical gender.
1st
First person — the speaker ("I"/"we").
2nd
Second person — the one addressed ("you").
3rd
Third person — the one spoken about ("he"/"they").
Present
Action in progress or repeated — happening now or continually.
Aorist
Action viewed as a single whole — usually a simple past event.
Active
The subject performs the action.
Indicative
A plain statement of fact.
Imperative
A command or entreaty.
Subjunctive
Possibility or purpose — "might", "should".
Infinitive
The verb as a noun — "to do".
Participle
A verbal adjective — describes while carrying the verb's action.

Theographic Context

Biblical Distribution

Appears in 21 verses across 7 books. Most frequent in Matthew (8 verses).

8
Matthew
2
Mark
1
Luke
2
Acts
6
Hebrews
1
James
1
Revelation

Verse Explorer

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