Mouth - Vine's Expository Dictionary of New Testament Words
Mouth
[ A-1,Noun,G4750, stoma ]akin to stomachos (which originally meant a throat, gullet"), is used
(a) of "the mouth" of man, e.g., Matthew 15:11; of animals, e.g., Matthew 17:27; 2 Timothy 4:17 (figurative); Hebrews 11:33; James 3:3; Revelation 13:2 (2nd occurrence);
(b) figuratively of "inanimate things," of the "edge" of a sword, Luke 21:24; Hebrews 11:34; of the earth, Revelation 12:16;
(c) figuratively, of the "mouth," as the organ of speech,
(1) of Christ's words, e.g., Matthew 13:35; Luke 11:54; Acts 8:32; Acts 22:14; 1 Peter 2:22;
(2) of human, e.g., Matthew 18:16; Matthew 21:16; Luke 1:64; Revelation 14:5; as emanating from the heart, Matthew 12:34; Romans 10:8-Romans 10:9; of prophetic ministry through the Holy Spirit, Luke 1:70; Acts 1:16; Acts 3:18; Acts 4:25; of the destructive policy of two world potentates at the end of this age, Revelation 13:2, Revelation 13:5-Revelation 13:6; Revelation 16:13 (twice); of shameful speaking, Ephesians 4:29; Colossians 3:8;
(3) of the Devil speaking as a dragon or serpent, Revelation 12:15-Revelation 12:16; Revelation 16:13;
(d) figuratively, in the phrase "face to face" (lit., "mouth to mouth"), 2 John 1:12; 3 John 1:14;
(e) metaphorically, of "the utterances of the Lord, in judgment," 2 Thessalonians 2:8; Revelation 1:16; Revelation 2:16; Revelation 19:15, Revelation 19:21; of His judgment upon a local church for its lukewarmness, Revelation 3:16;
(f) by metonymy, for "speech," Matthew 18:16; Luke 19:22; Luke 21:15; 2 Corinthians 13:1.
Note: In Acts 15:27, logos, "a word," is translated "word of mouth," RV (AV, "mouth," marg., "word").
[ B-1,Verb,G1993, epistomizo ]
"to bridle" (epi, "upon," and A), is used metaphorically of "stopping the mouth, putting to silence," Titus 1:11. Cp. phrasso, "to stop, close," said of stopping the "mouths" of men, in Romans 3:19. See STOP.