ὀμνύωomnýō

to swear, i.e. take (or declare on) oath

Greek (New Testament) · G3660

Meanings

to swear, affirm by oath: Matthew 26:74, Mark 14:71, Hebrews 7:21; followed by εἰ (see that word), Hebrews 3:11, Hebrews 4:3; with dative of person, Mark 6:23; id. with infinitive, Hebrews 3:18; followed by ὅρκῳ, Acts 2:30; ὀ. ὅρκον πρός, with accusative of person (classical Greek), Luke 1:73; with accusative, James 5:12; followed by κατά, with genitive (LXX; Bl., § 34, 1), Hebrews 6:13, Hebrews 6:16; followed by ἐν (εἰς), as in Heb. (Bl., § 39, 4), Matthew 5:34, Matthew 5:36, Matthew 23:16, Matthew 23:18, Matthew 23:20-22, Revelation 10:6 (Bl., § 70, 3).

Same root

Where it appears

Appears 26 times in the Bible.

  • Matthew 5:34 But I say, do not make any vows! Do not say, ‘By heaven!’ because heaven is God’s throne.
  • Matthew 5:36 Do not even say, ‘By my head!’ for you can’t turn one hair white or black.
  • Matthew 23:16 “Blind guides! What sorrow awaits you! For you say that it means nothing to swear ‘by God’s Temple,’ but that it is binding to swear ‘by the gold in the Temple.’
  • Matthew 23:18 And you say that to swear ‘by the altar’ is not binding, but to swear ‘by the gifts on the altar’ is binding.
  • Matthew 23:20 When you swear ‘by the altar,’ you are swearing by it and by everything on it.
  • Matthew 23:21 And when you swear ‘by the Temple,’ you are swearing by it and by God, who lives in it.
See every passage

Source: G. Abbott-Smith, A Manual Greek Lexicon of the New Testament (1922), public domain.