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WG: Oath / Swearing

Overview

The oath/swearing concept cluster in the Greek NT comprises the verb of oath-taking, its noun forms, and related legal-ceremonial terms for adjuring, vowing, and perjuring. All members except εὐχή share the ὅρκ- root.

Word Group Members

Strong's Word Transliteration POS Occurrences Role in Concept Library Entry
G3660 ὀμνύω omnyo verb 21v The act of swearing G3660-omnyo.md
G3727 ὅρκος horkos noun 10v The oath itself TODO(need G3727 study)
G3728 ὁρκωμοσία horkomosia noun 3v The institution of oath-taking TODO(need G3728 study)
G3726 ὁρκίζω horkizo verb 3v To put someone under oath / adjure TODO(need G3726 study)
G1964 ἐπιορκέω epiorkeo verb 1v To swear falsely / perjure TODO(need G1964 study)
G2171 εὐχή euche noun 3v Vow / prayer (voluntary commitment) G2171-euche.md

Relationships

Shared Roots

  • omnyo (G3660) — independent root (prolonged form of primary omo)
  • horkos (G3727), horkomosia (G3728), horkizo (G3726), epiorkeo (G1964) — all from the hork- root (fence/boundary → binding obligation)
  • euche (G2171) — from euchomai "to pray/wish" (voluntary commitment, distinct from oath-binding)

Co-occurrence (appear in same verses)

Word A Word B Shared Verses Typical Context
omnyo (G3660) horkos (G3727) 4v (19% / 40%) Reinforcing formula — "sworn with an oath" (Luk 1:73, Act 2:30, Heb 6:16–17)
omnyo (G3660) horkomosia (G3728) 1v (5% / 33%) Heb 7:21 — priesthood established by divine oath-taking
horkos (G3727) epiorkeo (G1964) 1v (10% / 100%) Mat 5:33 — "Thou shalt not forswear thyself, but shalt perform unto the Lord thine oaths"

Shared Hebrew Sources

Hebrew Word Strong's Greek Members It Maps To
שָׁבַע (shaba) H7650 omnyo (143x), horkizo (18x), horkos (12x)
שְׁבוּעָה (shebuah) H7621 horkos (25x), omnyo (8x)

The Hebrew oath vocabulary (shaba/shebuah) maps primarily to omnyo for the verb and horkos for the noun, maintaining a clean correspondence between testament vocabularies.

Roles in the Concept

  • Act: ὀμνύω (omnyo) — performing the oath
  • Content: ὅρκος (horkos) — the oath as a thing, the words spoken
  • Institution: ὁρκωμοσία (horkomosia) — oath-taking as a formal ceremony or institution
  • Compulsion: ὁρκίζω (horkizo) — placing another under oath, adjuring
  • Violation: ἐπιορκέω (epiorkeo) — breaking an oath, perjury
  • Voluntary parallel: εὐχή (euche) — a vow made freely to God (prayer-wish)

Key Passages Where Multiple Group Words Appear Together

  • Mat 5:33 — horkos + epiorkeo: "Thou shalt not forswear thyself (epiorkeo), but shalt perform unto the Lord thine oaths (horkos)"
  • Luk 1:73 — omnyo + horkos: "The oath (horkos) which he sware (omnyo) to our father Abraham"
  • Act 2:30 — omnyo + horkos: "God had sworn (omnyo) with an oath (horkos) to him"
  • Heb 6:16–17 — omnyo + horkos: "men verily swear (omnyo) by the greater: and an oath (horkos) for confirmation"
  • Heb 7:20–21 — omnyo + horkomosia: "not without an oath (horkomosia)... The Lord sware (omnyo) and will not repent"

Generated from: gather_word_group_data.py, search_strongs.py Last updated: 2026-05-12